http://www.bestbuy.com/site/promo/t...D=1&siteID=FKSJxY2VJAk-jo_8b5n6GNEw8GWjHQZJOA
Credit to CAG
Combine with GCU you can end up getting Gears 4 close to $20. Also if you preorder Gears you get $10 RC
Not all stores do trade in so you have to check.