So this is what I believe happened.
In early December MS sold out of units shipped via normal methods (boats mostly). This was because of better then expected demand for Kinect in November. So they in essence ran out.
To alleviate the December problem MS put units just built into planes rather than container ships and got them to market ASAP. Still there was about a week of little to no units to be found. Over the course of a week I found 2 Kinect Sensors and 1 4GB 360 with Kinect and was able to sell all of them on Amazon for about $75 above retail. Then found 1 more sensor and 1 more 4GB 360 later in the month well it turned out so did everyone else and you saw that on Amazon where all of a sudden the resale market dried up the last week plus as the air shipped units arrived.
So now those units that should be arriving now via boat were in stores end of December and now and since no container ships are arriving with product for a few weeks availability will dwindle.
Its libraries that sell systems not a single game.
