Not worth buying, only renting

I, like many, was conned into buying this game. It's great at first, but after, say, the first hour, the game just gets extremely dry and repetitive. Not to mention it gets nearly impossible later on in the game. The game does have great sound and graphics, but who really buys a game just for these reasons? I really think the developers of this game should have put more time and effort into this game by giving it multiplayer support or maybe more variety. I would strongly advise against buying this game, although I do believe it would be a great game to rent.