Battery powered hand tool systems are a big cost now, especially that brushless motor have got so good. Its important to think about them as a system, like will replacement batteries still exist in 2 years, can more tools work with the same battery, etc. That makes it harder to try something and see how good it is. I agree with you re many tools though. For tools I'd recommend talking to someone who works with them daily to get a real opinion, and wouldn't trust anything I read
My best guess is that by doing this they can raise margins on some items by making them lower quality or by charging more than they could otherwise get away with. If a brand has a great tool X, you might buy their lousy tool Y just to be able to use the same chargers and batteries.
For me, anyway, as a non-carpenter, I just end up with an annoying bespoke set of chargers and batteries.
The thing about their system is the whole only works so long as they keep you locked in. Once you make a choice you are locked into that choice and won't be looking at alternatives - but if they change batteries you suddenly are faced with the loss of your entire investment and so you are likely to look at the competition and might buy something else. That makes changing battery formats less attractive to the big brands trying to get people who buy a lot of tools.
The store brands have a different motivation: they know you won't be buying them again anyway, so they don't care. Changing formats means they can come up with some tiny reason the new one is better and try to sell the next customer on how their new battery is better.
If you are not a buying a lot of tools your plan isn't bad, just throw away the tools when the batteries die in 10 years. The tiny reasons some battery is better - over 10 years might add up to something slightly better than before anyway.
After the first ones broke we asked around and received only three recommended brands. DeWalt, Makita or the Blue Bosch line (in Germany). We went for DeWalt and never looked back. The power cells haven't changed in form or fitting in the years since and we could not be happier with performance and durability.
It is like deciding on a DSLR system. Once you are invested into Canon, Nikon, Sony or the likes with lenses and accessories you are locked in but also you learn to really know your tools and imho receive a productivity boost.
For example - whenever I am with other people and need to use their tools, I have to look at them and see how they work, what buttons/knobs are where and so on. With my DeWalt tools this is already muscle memory and the work as an extension of my arm - my brain uses them as if they were a part of me. This let's me focus more on the task I want to perform, not on the tool.
The smaller brands like Craftsman and "store brands" seem to change relatively randomly.
So eventually the cheapest tool makers get enough money to buy up the differentiated quality makers for their logo with enough branding power to price discriminate, and slap it on products from the same cheap factory line.
Then, ugh.
There’s also that motto of “I’m too poor to buy it twice”, which comes into play when item y has a price like 75% of the premium version and/or you know the tool will have some rough travel and high demand, or time lost from outage isn’t acceptable. Then just spend the money on known-solid brands.
Reviews are an area where I really value specialized forums more than social media or blogs or industry publications.
In all cases with reviews even when no monetization involved, there can be a bandwagon mentality for brands and also people convincing themselves the high price they paid matters for something (even though it may not).
The second time you buy a type of tool you definitely need to go for quality, the first time though, are you certain you're actually going to be constantly using that tool?
If the tool breaks quickly, that's not usually a terrible outcome. Most companies have at least a 90 day limited warranty you could take advantage of in that case. In many cases, you can even just return the damn thing to the store where you bought it and get a refund or exchange for a better tool. This, of course, assumes that the reason you needed the thing in the first place isn't incredibly time-sensitive, but, usually, it works out fine.
Of course, if it lasts forever, then, great! But, in the intermediate scenario, where you encounter the limitation of the tool a little ways down the road, that's actually where this strategy shines, because you get a chance to upgrade to a better tool without wasting a ton of money on top of the line equipment right away. I know photographers who do this with lenses all the time: they'll rent a new lens for a week or something, go out and shoot it to see how it really works, and then determine whether they want to commit to it. $100 spent on a lens rental has saved some of my friends more than $1000 on glass they don't need. And, if they ultimately do end up buying the lens, that $100 is $100 well spent for peace of mind that they will actually get the use out of the thing that they actually bought it for. And, I think the Harbor Freight strategy makes a lot more sense if you view the initial purchase from HF as possibly a long term rental.
Now, there is that one caveat that you need to buy "the cheapest tool that could possibly work." If you're a professional machinist, for instance, don't go buying a $5 caliper and thinking that will be good. Go and spend the $150 or whatever on a Mitutoyo instrument to begin with, because you know damn well you will need it. This is just an example I pulled from personal experience, as I needed a caliper for hobby purposes a few years ago and ended up looking at things ranging from that $5 caliper on up to precision instruments. For my purposes, the low end is totally fine, because I don't need accuracy better than 0.1mm, and it's not my professional livelihood on the line. But, if you're a professional, never trust an instrument that doesn't come with a certificate of calibration.
I've also used this strategy with good success on photography equipment, myself. I wanted a DSLR camera I could use to take pictures for hobby purposes, mostly intended for web use. I did a little research and decided that a used Nikon D3400 was for me. So, I went to eBay, found one that only had about 1200 clicks on the shutter that came with the 18-55 kit lens and the original box for $325 (tax and shipping included), and I bought it. I augmented that with a used 90mm Tamron macro lens for under $150 and I was good to go.
It has one or two small limitations that either only come into play outside of the original use case I had in mind, or which aren't really annoying enough to mention, but, for the most part, it's been a spectacular camera that I spent under $500 on, as opposed to spending $1000 on a Z50 (or, you know, gone really crazy and gotten a D850 or a Z9), and then another $900 on a new Nikon 105mm macro lens, but, for my purposes, I can take photos that are 95% as good as what I could ultimately produce with the more expensive equipment, but, I can legitimately say this strategy has saved me over $1000.
I did exactly the same thing when I started learning to play the cello. A new, carved wooden cello suitable for a student probably runs around $2000-2500, and that doesn't necessarily include a decent bow. This is also an instrument one will certainly grow out of if one continues playing. I did my research and went out and bought a Yamaha electric for $3000 and went to a cello shop to try out bows, ending up with a nice $1200 bow. I ended up with an instrument I'll never outplay and a bow that will last me years. The alternative would have probably been a much less playable bow and instrument, or a lot more money expended.
But I can't pay more to get a higher quality version of the tool, because the store doesn't even bother stocking a higher quality version.
If I plan ahead, I can shop online and find a quality tool. But what I really want is the option to buy a quality tool during a weekend project.
There's also just quality of life. As a DIYer I'm not particularly concerned about wearing out tools. But still I might want to pay more for better ergonomics, ecosystem compatibility, power, tolerances, or other non-longevity qualities, rather than being stuck with an adequate but suboptimal tool that gets the job done while bothering me.
On that note though, an even worse practice is when a brand achieves notoriety for quality and starts making "light" versions of their tools. One example of this before they went belly up was Craftsman making nearly identical looking "Sears" brand that weren't covered by the craftsman warranty. Bosch also did this with pimping out their brand name to extend to rather crappy home appliances here in the EU. Black and Decker was synonymous with reliability in the early 80s, and I still have some jigsaws and circular saws from my dad that work great from that era, but anything from them now is arguably worse than the cheapest things you can buy at Harbor Freight.
It's an incentive problem. It's extremely difficult to get incentives aligned over a timeline longer than a few years that it might take for options or stock to vest or clawbacks to expire.
The batteries on my ~20 year old Craftsman cordless drill are finally getting to the point where they won't hold a charge. I'll probably have to bite the bullet and wade into the mess of "brand-name" tools the next time I have a significant project.
But anyhow, what happened with B&D has happened to so many previous quality brands. It's really frustrating to me.