Simple: They like the game/series, but not enough for it to be a system seller. I would bet that for all the fans Final Fantasy gained with FFVII, it lost a fair few as well, people who enjoyed FFVI, but who enjoyed games like Mario 64 more, sufficient enough to carry from SNES to N64 and not to follow FF.
Monster Hunter Tri's sales showed that whatever Capcom is losing from moving away from PS platforms, they are at least gaining back. The only question it poses is: why not multiplat? The answer in this case is a fairly transparent Nintendo moneyhat, one of very few Nintendo has ever done (the others being Monster Hunter Tri and recent Dragon Quests)

Monster Hunter: pissing me off since 2010.







