My comment re irony was aimed more at the "the closest one is 2 hours away" statement (vs 2-day shipping straight to one's door, of course)...
And frankly, I think people who do "most of their shopping" on Amazon are simply idiots who deserve whatever they get (which is why I think overly broad/blanket comparisons with places like Costco - assuming you can use or store giant-size everything to begin with - are "stupid and irrelevant"). But hey, more power to them, their idiocy "subsidizes" the occasional very good deals I find there, and to some extent the 2-day shipping I get with Prime, which the Prime fee alone would not otherwise cover... (And no, for the kibbitzers among you, I rarely if ever buy the stuff that's "marked up" to cover shipping costs. Unlike most Amazon shoppers, or so it would seem, I actually read product descriptions and check prices before I buy stuff there, as anywhere else...)
I agree to some extent, but think most people's expectations of oversight of "third-party sellers" on any etailer's website are excessive. And on Ebay, what you say was more appopriate "back in the day" before the vast majority of Ebay sellers were regular "businesses" of one sort or another. The percentage of Ebay sellers who are "mere" individuals selling "their old stuff" to other individuals is very, very small...