So, what could MS do with plenty of shipments arriving too late for Xmas by, er, ship (sorry for the unavoidable pun )? Say, trying to steal some thunder from a competitor's big launch, like it already did with Forza bundles started during GT5 launch, this time, instead, flooding stores with Kinect-360 4GB bundles at $200-220 (*) time limited offer during 3DS launch? Knowing MS, I wouldn't rule it off, not fair at all, but business is business, and against Sony it worked fine (although Sony will almost surely retaliate with heavy GT5 bundling during Forza 4 launch), so why not be more ambitious and aim at Nintendo next time?
(*) It shouldn't lose money on such offer, if the rumours about standalone Kinect production cost at ~$50 are true, just break even at worst, without counting successive games purchases and possible XBL Gold subscriptions.