I traded in 6 Wii games yesterday at gamestop. Most of the time I don't ever do that because of the low trade in values they give you but anyhow... When you trade in 6 you get 40% more value off the games and then I used my edge card for the extra 10%. I saw they had a buy 2 used get 1 free so I found 6 Ps3 games I wanted and traded equally across actually ending up with $3.50 more. Games I got were

Fallout 3

Dead Space

Farcry 2

Civilization Revolution

Metal Gear 4

Bioshock

I'm still stoked and can't quite figure out how I made out with such a nice collection after traded in some mediocre stuff.