> I've long subscribed to the philosophy that you should buy the cheapest tool you can find and use safely, use it until it wears out, breaks, or your skill surpasses the capability of the tool - and only then should you spend money on high quality tools.

Overall, it's not a bad philosophy. But I can think of a couple of complications here:

- For battery-operated tools, standardizing on one system means you can buy a handful of pricy batteries and share them among many tools. Batteries wear out, and eventually need repeated replacement. And only needing to replace, say, 3 batteries from a single brand is convenient.

- A lot of times, it's possible to buy medium-quality tool sets (say, hex wrenches) for less than $100. I'm literally going to use many of them as long as I live. Why not spend $70 and get something halfway decent, instead of the $30 junk?

- If you're doing a big project (refinishing kitchen cabinets, building a deck, etc), that can easily justify spending a few hundred dollars on a quality key tool. A quality drill/hammer driver pair is game changing, for example. Saves countless hours compared to my old gear.

I had Craftsman power tools until battery replacements were only available from fly-by-night companies and a couple of the tools started failing (after 20 years). I wound up buying a couple of DeWalt tools on sale and they've been rock-solid. So I added a couple more as needed. I tried a Ryobi line trimmer a few years ago, and the battery system failed within two weeks. So I took it back and paid $50 extra for a DeWalt version that has run flawlessly. I could save some money by buying less-used tools from a second, cheaper brand. But that would double my battery replacement costs over the next 20 years, and I'd need to do more research for each purchase.

So sometimes a set of "79 auto tools for one low price!" is a good move. And sometimes, mid-to-high end homeowner gear or even a contractor tool is worth the money.