I just came back from my local MC (in Northern Virginia/Fairfax) and they have plenty of Halo consoles. I counted at least 15.
A few things to keep in mind:
-the box is generic and not the original black box with the Reach artwork
-it only comes with the console, one silver LE Reach controller, power supply, and standard AV cable; there is no instruction manual, second controller, Halo Reach game, headset, or voucher for Legends movie
-be sure to inspect what is inside before buying; I looked inside one and the silver console I saw had a few minor scratches
Otherwise, again, this is an awesome deal.