the pricing of the PS3 in relation to the Wii U and vice versa are largely irrelevant.
It seems pretty clear that there's little overlap in the two target audiences (as crazy as that sounds, outside of "they play games")
If you haven't bought a PS3 until now - i'm not sure there's going to be a deluge of demand at the current price point.
Nintendo , i think, are looking to get the Wii/Nintendo only players to upgrade to Wii U - with the theory that those millions of people who bought Wii either lapsed out of gaming, or didn't invest in PS3 or X360.
So - especially for Japan - when the PS3 and Wii U are , side by side, nearly the same price the differences in price is largely irrelevant, and the difference in library isn't going to make a jot of difference to the perceived target audience Nintendo are looking at because they've ignored a slew of games to date -anyways-. What difference is a couple of extra games, a new model, and a new (ahem) improved price point going to make when the Wii U theoretically is a continuation/improvement of an experience they enjoyed enough to not invest in the PS3 in the first place?
Infact, i'd go onto argue that Sony having the price at parity possibly pushes one or two (not a significant number) over to the Wii U. Arguemnts about "nyuk 6 year old tech" become a little crazy when the price of ACTUAL 6 year old tech = "nyuk 6 year old tech"
Don't get me wrong - i think the PS3 will sell fine out here, but i don't think there's many people sitting trying to decide between PS3 or Wii U.