I think this topic for Japan is simpler than you think.
Games.
Games, not high tech numbers, sell consoles. Japanese games taste are obviously not centered on HD graphics OMG!!11. Instead, it is about the experience playing the game. Something only differentiated by the DS and the Wii. The others all offer the same experience rehashed over and over again. Whereas the DS and the Wii have given Japan a reason to play.
PS3 will do better due to its affordability and, arguably, best quality Bluray player; especially as prices continue to drop. However, similar to the PSP the attach ratio won't be stellar. In other words, it will sell on its non-game related avenues.







