ebay is filled with people that care about their reputation score, and alot are doing amazon or walmart or wherever dropshipping triage. Basically using gimmicks and other loopholes to sell from one place on ebay as their own and just fill in the address of the ebay shopper. The shops dont want to deal with returns so they will usually find the best items with the best price with the lowest return rates and have impeccable service.

i did this for a few months and made some money, i just hated dealing with customers and the margins some of these guys work on i think they were compiling it with CC points or some other compounding offer.

I still like ebay just pay attention to reputation and make sure you click free returns in the search