This comes from an anonymous tipper, so we're going to go ahead and label it as a random rumor, but it sounds like it would make sense. As you all know, Best Buy sold out within -1 hour of the store opening (gave out tickets to campers). What about the next shipment, you ask? They'll probably get one in the next week, actually.
But here's the catch: they won't be selling them to you. In order to maximize the hype, they won't sell them immediately, rather, they'll stockpile the systems in order to have a big re-launch event (probably closer to, er, Christmas. Not PC? I don't care -- it's true). The re-release days will be advertised as extremely limited quantities, of course, so start camping now? Actually, don't. Wait until we see if this is a rumor or not. Let me put it this way -- if Best Buy doesn't want this news leaked, this post will magically disappear. Or I'll say they tried to make it do so.