Don't have the balls to share. That's okay.
Oh yeah? What site might that be?
Well it's a German website, so I didn't add a link. I expect there are similar ones over in the us though; it's pretty much just a sophisticated trading forum.
http://www.game-change.de
I spent about 25€ in postal fees so far, got about 12 new games for stuff I didn't touch in years. I'm pretty sure, I got more out of it than the pocket change gamestop would have offered me.