It's still a rental for me. I had loads of fun with F1 but F 2got boring real fast. IDK if it was how career was setup or what but after putting in countless hours on Laguna Seca, Atlanta, etc and then they put the same tracks in F2 it gets old to me. At least Burnout has a decent soundtrack. Also, screenshots mean squat to me, if the gameplay and fun factor isn't there I could care less how good a game looks ex: Gears 2.InjuredNoodle
I was just showing you that the graphics are much better than in Forza 2, since you said Forza 2 didn't look good.
And its more than just the same tracks this time. There's more than double the amount of tracks than Forza 2 had, which is more than pretty much any racing game ever, sothere should be no 'getting bored' doing the same tracks over and over.
And career is done completely differently this time than it was before. Its much bigger and its setup to adapt to your preferences.
Definitely give it a rental, at least. It sounds like most of your complaints are being addressed with Forza 3.