You have to remember that most of the games now on clearance at BB were old and/or didn't sell particularly well. As a result, most B&M stores didn't have many of the sale games in stock to begin with (much less mutilple copies of each), so when you add the fact that many CAGs rushed the stores shortly after the news broke to find the bargain gems, it didn't take long for the few titles worth owning to quickly disappear.
Yes, it would have been nice if Best Buy had enough copies of every game for everyone that wanted one, but you have to remember that we're talking about the scraps of BB's old inventory, much of which just wouldn't have sold at all unless it was on sale for $5 new. If you found anything you were really looking for at BB, you're ahead of the game at this point. If you missed out, you're among friends here. A lot of people came up empty on BB's latest wild goose chase. All I really need at this point is for my online orders to be cancelled (any day now I'm sure).