yeahh... but then you wouldn't play the game for the game, only for the story... so you could better watch a movie or so ; )
And I think (for me at least) that the storyline is a reward for the time you put into ; / ...example; I never really liked playing Red Alert series (campain), but I played them anyway cuz I wanted to watch the movies ; ) ...and if there was an option to watch all the movies at once or without any effort (cheating -> next level, unlimit resources, etc), I wouldn't have played the game nor would I enjoy the movies as much.
EDIT: ...but that is just my experience ; )