Thanks for all the feedback.
Odd, PSS who originally has it on their website at $550, now has it at $600. If the $550 was a mistake and they're going to be charging the MAP of $649, why change the website to $600? I'm still kicking around the idea of getting one, but if anyone is serious about it, I guess they should call. Maybe they'd honor a $600 price.
$550 seemed to be the going street rate for the earlier USBPre 1.5, so that might be why they originally had up that price for the new USBPre 2.