I don't use eBay a lot, but I do some. I buy the plastic rolls for my Foodsaver there. I don't sell a lot, but every one in a while I do. With the purchase of my iPad and the accompanying Kindle app, I knew I wouldn't be using my second generation Kindle anymore. Likewise, with the purchase of my Nikon P500 I didn't need my pocket Canon any longer. I decided to sell both on eBay, thinking it would be a nice idea to generate some cash to help feed my combined iPad and Kindle addiction.
The Kindle sold to a fellow in New York who paid immediately and left feedback suggesting that he was going to really enjoy it.
The camera seems to have gone to someone in East or South Asia (even though they gave an Orange County shipping address) who took a while to pay. I expect that it will end up in the Far East somewhere.
One can't select one's buyers on eBay and one probably shouldn't care. But there's a part of me that wants those things I'm letting go of to find a "good home." Just won't happen every time.