Just saw this online at http://www.gamestop.com/trade
Terms and conditions:
Trades must be in full working condition to receive full value. Cannot be combined with any other offer. Not valid toward cash trades. Trades subject to manager approval. Offer valid only toward games normally accepted in trade. See store associate for details. No dealers. Void where prohibited. GameStop, Inc. reserves the right to cancel, terminate, modify or suspend the offer for any reason without notice. Offer valid 1/25/16 through 1/31/16.