Minor anecdotal report on the PSP's launch:
I was just at my local EB, and there was no crowd. I think one person came in, excitedly bought a PSP, and ran off.
A mother was in there and thinking about getting a PSP. After a while of humming and hawing, one of the clerks said "Here, you can just try playing it for a while" and passed a PSP over the counter to her. The other clerk said a very hushed "What the hell do you think you're doing?" to the first guy, who responded "Ehh, who cares? It's just one of the dead pixel units."
After about five minutes, the mom gave the unit back, saying "Oh, I just don't know... How many of these do you have left?" The clerk said "Ummm... ahhh... maybe one... or two?" Then the mom said "So do you think I could sleep on it, and maybe come back tomorrow, and you'd still have one I could buy?" To which the clerk responed with a cheery "Oh sure! No problem. You could totally do that."
I almost broke out laughing. Basically, it seems that at least some retail outlets are under orders to pretend that there is a shortage of PSP hardware, even though they have an abundance, to try and generate excitement.
I went next door to Zellers and saw that they had a neat-and-tidy stack of at least a dozen PSP units behind glass at their videogame counter, with no noticeable interest in them at all (which is semi-typical for Zellers, but not really on a launch day).