Advantages to this system:
-Shorter Main Game
-No "Well, it couldn't go anywhere else" moments.
-Available for people who care, optional for those who don't.
-It looks nice and makes people more likely to like the game.
-Makes more sense. (Though this could tie into the second one)
Of course, this ties into Story and Maps, so it'll be my job (which means less work for you ;D).