From what I can tell, downloading just Shivering Isles alone through XBOX's marketplace is 2400 points of $30. But, according to Amazon's description of the new Oblivion 5th Anniversary Edition, it comes with both Shivering Isles and Knights of the Nine and costs $30 + Shipping?
Am I missing something or does it just make complete sense to buy the new 5th Anniversary Edition of Oblivion, and enjoy the DLC and bonus features, plus I'll be saving money...?