There have been so many startups over the years that have tried to replace Ebay. They almost always failed. Why? 1) Buyers need to trust the sellers and with

There have been so many startups over the years that have tried to replace Ebay. They almost always failed. Why? 1) Buyers need to trust the sellers and without the history and system already in place, it's not going to happen. You didn't need this system in place when Ebay started, because it was such a new idea. 2) Without the buyers, the sellers won't bother. I've been a seller for a couple of years and all of the smaller sites combined don't even compare to the number of sales I get on Ebay (Amazon is the other big marketplace). I don't even waste my time on the other sites anymore.