I've sold a couple of domains here and there. $50 here; $50 there. Recently, I sold a domain I had thought up myself, for more than I should have. The buyer contacted me through a GoDaddy broker and offered $150 for it. In hindsight, that number was much, much too low, seeing as they paid $60 some dollars just for the broker fee. They must have really wanted it. The domain name was myceliYum.com. I countered their offer at $350 and the buyer immediately accepted. I think that the domain was clever and there was no particular trademark on it. It could have been used for a whole host of mushroom food products. I wish I could get it back but live and learn I guess.