Well, it seems like that rumor of each Best Buy store only getting four Pres each has been busted. EverythingPre’s forum member atlanta has posted a bunch screenshots showing Best Buy’s expected inventory levels for the Pre. Most stores are getting slightly more than four phones, and a lot getting dramatically more.
If your local stores are not shown within the first post, browse through the nine pages in the thread. The user has posted many screenshots and your store is probably in there somewhere. If not, create a profile and request it for the good of the cause.