Nintendo 3DS is coming soon and GameStop wants your Nintendo DSiXL in trade. This week, they're offering a $100 trade-in credit toward a 3DS when you trade in your XL. If you don't have a DSiXL, they are also offering $75 toward the 3DS for your DSi and $50 trade-in toward the 3DS for your DS Lite. This offer runs through 2/20/2011.
They also have an online-only sale right now. Buy 2 pre-owned games and accessories, get 1 free. So be sure to check out their selection. Remember, their games are guaranteed to work and you can take it back to a regular B&M store if you want or return it to them via mail if it isn't what you wanted. Use BUY2GET1 as the promo code to get this deal at GameStop.com.