Unlike how Sony handled the PS2 release, Microsoft is putting more units at larger retailers. So, stores like Best Buy and Wal-Mart are going to get more units than Funcoland.
There won't be the shortage on Xboxes that there was on PS2's, so trying to make a profit off of them may be a losing proposition. I had four PS2's last year, and I had a hard time selling the last two because more and more became available before Christmas. As of right now, kbtoys.com has the bundles in stock for $499.99. I also didn't overinflate my prices like others did. But what little profit I did make helped cover my Christmas expenses quite nicely.
I still haven't seen one on the shelves in Northeast Houston/Humble/Kingwood. Toys R Us up here has been sold out of Xboxes since the release, though they took a while to get rid of all their Gamecubes.
God Bless Texas