1st. No s**t Sherlock, you figure that out for yourself?
forget the fact that it's mentioned atleast 5 times someone brings up the game, it's kinda in the name.... "prologue" as in a "prologue" to gt5
2nd, it's more than it's content. it's the shitty layout, shitty controls, and none-to-spectacular graphics.
That's what happens when they take 5+ years to make a game. You get a game based off of programming techniques from 5 years ago with a bunch of newer patches trying to bring it up to date.. and the f**ker still hasnt hit the shelves yet.
GT5 and FFXIII are going to be disappointing. They always are when it takes this long.