I agree that Final Fantasy X was better by itself, but many others felt it was incomplete. Also, your prediction isnt exactly correct :P
The plot is generally quite thin so the game is mainly focused on mini-games, ALL of which you have to complete to see the full ending. The game, in all honestly, was pretty pointless, though some elements of it are really nice ^_^ I love 1000 words and some of the FMVs are good for music videos too.
