Madden 11/GameStop purchase So today was probably my most successful GameStop shopping ever... I traded in MLB 10 The Show, Batman:Arkham Asylum, and Call of Duty:Modern Warfare 2 for Madden 11 and with my power card (or whatever it was called) and my GameStop Edge membership, GameStop gave me $5.31 for Madden 11. I was pretty pleased with the purchase, considering all I'll be playing for the next 8 months is Madden/NCAA 11. I then took $5 from my refund and put it down on reserving NBA 2K11. Not bad. I'm pretty pleased with the shopping today and wondered what other TF'ers do with older copies of games. Are there better alternatives to GameStop for older/unused games?