for anyone thats interested...lego star wars II trades in at GS for $7..and if you trade it towards GTA or mario kart you get another 20% plus the Edge 10%...so after all that you are getting like $9.45 trade in credit for a $5 game...
i went back to my target today and picked up 3 more copies ( i had already bought 1 for myself), and traded them into my GS for GTA. The clerk was like,"you're trading in unopened games? three of the same game...how did you manage to get three of the same game?"
anyways I hope this helps any CAGs in need of paying off GTA