Amazon doesn't give a shit if you're being hustled. If they have to issue a refund, that's the sellers problem, in all other cases they make money. There is so much junk of Amazon that's just not worth it. The only reason I ever shop at Amazon is if I truly cannot get the item elsewhere. They aren't cheaper, they're certainly not faster (in my area) and with every purchase you're at a much greater risk at getting scammed, compared to shopping at sites that don't do the marketplace crap.
In a sane world Amazons customers would be leaving in droves, and I cannot figure out why they don't.
Because Costco does not sell a lot of stuff that I want.
Their logistic network is where prime holds its value.
Costco is great for curation, but only for the items they carry.
A combo of Amazon for the random junk I don’t care much about and Costco for consumer staples works out well.
And no online vendor gets remotely close to Amazon for speed of shipping, ease of returns, and product selection. Usually matches the best price I can find on most things too - outside of stuff I buy direct from China.
Lots of the random crap I buy on Amazon I want the marketplace for. Like I needed a dozen plant domes this spring. I wanted them tomorrow, not next week and I didn’t need qty 100. So having the option for that vs. a gardening warehouse that targets large growers is quite handy and exactly what they excel at for me. I could care less which random brand sells the thing to me since they are all the same.
I don't particularly like Amazon and would like to shop somewhere else, but it is sooooo convenient that it's hard to quit.