I stopped selling on eBay a while back. Every once in a while I think I should try again because I need to clean out some of my junk, but eBay has become such a chore. I think a yard sale would be easier and more fun than eBay at this point.
I've noticed that since I stopped selling, I hardly ever buy on eBay anymore. When I was on the site checking my auctions I would look for things I needed. Now I shop a variety of sites. I still check eBay, but it's no longer my first stop. As a buyer I've found some great deals now that I'm not tied to a single site.