It doesn't matter if the $500 million campaign wasn't solely for the Kinect. It was the primary goal, and still basically ate up the revenue of 3.33 million kinect units (which means they really needed to sell a lot).
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs