I've decided that when I get an Xbox 360, I am going to purchase Forza Motorsport 3 and 4. I've been playing Gran Turismo ever since I got my PS2 back in 2003, and I've loved it ever since. I've heard people say Forza is 10 times better than GT could ever hope to be, and I've heard others say the opposite. So what I want to know is, is it worth it? What, other than the livery editor, does Forza have that GT doesn't? Thanks for any feedback!