First off sales are not poor. VGChartz says that 360 sales in February were 100K more than last year. They would have been better had it not been for shortages early in the month.
Now the very reason that they may have become short was retooling factories for Falcon model. It is entirely possible that the final 3 months of 2007 had factories building both the retrofitted models and the 65NM Falcon models in enough supply to make it through the end of the year. Then in January the remaining factories had to be retooled for the Falcon model.
Also maybe because MS wanted to make sure that they did not make a price drop of signifigance until this was done and the risks of RROD were drastically lowered. Now that it appears all models being sold are the reliable Falcon models MS can go ahead and drop price and not worry about repair costs.
Its libraries that sell systems not a single game.
