Wow.  I just spoke with my wife who's in the Dallas, Texas* area for Thanskgiving (I'm meeting her there) and her sister wanted to get Steve, her husband, an XBox 360 from the local Target.  And, after arriving on line at 5 am, she discovered that there the store only had 12.
The local Walmart only had 48.  And the biggest lot that anyone in the whole city had is reportedly 220 at the local Best Buy.

Looks like the reports of Microsoft limiting supply to maximize demand (and pricing) are completely true.

*That's where her family is.