While out today stopped at Costco and BestBuy. Both out of standalone Kinects. Costco has a pallet of 250GB Kinect bundles at the registers (1st time I have seen Costco do this with a console). Costco only has non Kinect 4GB 360s. At BestBuy I only noticed 250GB bundles. MS and Sony both had people demoing Kinect and Move and the crowd was at the Kinect demo.
EDIT: Just noticed that on Target.Com that sensor, 4GB, and 250GB all sold out.
Its libraries that sell systems not a single game.