I think this question is an interesting one. Namely because I reckon you all do trade games in.
If you’re like me you want to play an unhealthy amount of games, so there’s a point in time when you simply have to trade in games. Even if money isn’t an issue sooner or later when you’re picking up retail copies you’ll need more space. But we all know that trading in hurts developers and publisher. I always feel a little guilty trading in them, but I simply have to. Make digital copies cheaper already!
So go on, admit it, you trade in games to.