This is actually somewhat true again now that Amazon has gone full monopoly abuse, but for a while Ebay was nothing but 1:1 with Amazon sellers and a serious lack of auctions.
Although you can go much lower with Ali Express and Temu, albeit with risk invovled.
I thought eBay in this context meant second hand? Because here's the thing: i think second hand means you save a lot of money but you get less choice and less convenience; but platforms are getting good now so both of these factors are mitigated.
Anyway, eBay being 1:1 with Amazon is good enough for me, and i agree that AliExpress in particular is now better than Amazon in terms of price and choice. I don't even know how risky it really is, they can refun orders right?
Just as casual conversation, what items or categories of goods do you usually deal with? Just wondering, as I myself have noticed "the boat" rocking back and forth between different online buying options for years. I live a pretty minimalist life now (used to be heavy tech) so I don't buy much anymore and am pretty out of the loop now.