Xbox Live Marketplace's Games on Demand has added Red Dead Redemption, Prince of Persia: The Forgotten Sands and Narnia: Prince Caspian at prices one could kindly classify as "outrageous."
Red Dead Redemption is listed at its full boxed retail price of $60. We've confirmed with Rockstar that the digital copy is just the original game and doesn't include any of the DLC. Obviously, we recommend purchasing this through the marketplace like we recommend a rattlesnake bite to the groin. Prince of Persia: TFS and Caspian are priced at $30 apiece (way above their Amazon prices).