Do you feel like the game has enough for you to do? I play Street Fighter IV and some other fighting games in a competitive environment, and the competitive aspect seems to have completely passed over Dissidia Final Fantasy likely linked to the lack of online play.
Is it really fun just playing against the computer all the time? I would not recommend the Street Fighter series or Tekken series to those who cannot play others since the storyline has never been the strongest point of any fighting game.