hwalin76 is selling a rare Batman Arkham City Collectors boxset. These were only available for a limited time.
Batman: Arkham City for play on Xbox 360
Custom Batman statue produced by Kotobukiya
Collectible art book
Early access to the Iceberg Lounge Challenge Map and Batman: The Dark Knight Returns skin
Batman: Arkham City album from WaterTower Music including original songs
Bonus DC Universe animated original movie, Batman: Gotham Knight
Four collectible cards