We're getting One Piece Musou 2 next year...hopefully sometime before that Koei will see fit to give us one of the Fist Of The North Star games. And with Vita getting Ninja Gaiden Sigma 2 and DOA5, maybe other developers will see the sales those releases with generate instead of just looking at the size of the user base. I would think if your product flies off the shelves, the user base size, providing that it's in the millions, really won't matter that much.
Who knows, maybe these companies will find it cheaper to do digital releases only. If that's the case, depending on the game, I'd go for it if it's the only way to get said game. I shelled out 40 bucks for tekken 6 psp 4 months ago, I'd certainly do that again for ttt2 if it came to it.