For what it's worth, here's my quick story. I got a PSP (DEVIL PUSP!!!) for Christmas. I appreciated it, but I didn't really think I would do much with it. So, the week between Christmas and New Year's Day, I decided I would take it back to Best Buy to get a DS Lite. This is in/around Spring, TX (Northwest Houston). I had no idea they would be difficult to find.
The Best Buy to which I returned the PSP didn't have them. They said to me, "No one has them. You can't even order them online right now." They said I just needed to keep checking back.
I decided to just run around a bit and see if I could score one. I went to Target and GameStop. The only one I could find was a used phat a GameStop, which I didn't really care to pick up.
Anyway, I am just waiting until the Best Buy gets one. It'll happen. I hope. Or maybe the universe really is asplode?