Why is the PSP lowering in the US and Others and rising in Japan?

[insomniac17]

Japan gets all the freaking colors. Contrary to popular (or at least Sony's) belief, some Americans do like variety. Black, white, and silver are cool, but some of us like more variety. Yeah, there are others, but Japan definitely has the most. =P I kinda like that ice blue PSP or whatever its called.