I was going to trade in MW2, Borderlands, and UC2 but Amazon is killing Gamestop right now even with the 50% bonus, so looks like I'll be going that route instead.
UC2 is $38 on Amazon, $27 at Gamestop after 50%
Borderlands is $30 on Amazon, $26 at Gamestop after 50%
MW2 is $33 at Amazon, $33...