To be fair to Sony, that particular model is a special edition, and the regular Vaio P costs a more reasonable, although still not cheap, $1,000. Having looked at it, I can't quite see what makes the special edition model more special than the regular versions, but I'm sure Sony have a plan. Although, given what some of their recent plans have been like, it might not be a very good one, as a policy of releasing very expensive hardware in a recession doesn't seem to make a lot of sense.
Still, it makes the PSP Go seem quite reasonable.