I'm sure these are pretty limited in quantity, but Micro Center is selling the Xbox 360 version of Grand Theft Auto IV: Special Edition for $24.99 plus shipping. Shipping was around $6 for the cheapest option.
This is also available for in-store pick-up at your local Micro Center if you have a local Micro Center.
http://www.microcenter.com/single_product_results.phtml?product_id=0266680
This is also available for in-store pick-up at your local Micro Center if you have a local Micro Center.
http://www.microcenter.com/single_product_results.phtml?product_id=0266680