How many people play forza motorsport 3?

I want to buy forza 3, but nfs shift 2 comes out next month and im scared everybody who plays forza will go play nfs shift 2. Of course not everybody who plays forza 3 will go play shift but I dont want to play with couple hundred people or less either.How many people play forza motorsport 3?
It's hard to say, people will probably buy both and pick from then on what game they like, its hard to make a good call when the game hasn't come out yet so if i were in your position i would wait till shift 2 comes out and youtube a review on the game, maybe rent it if youve already played forza 3 and make comparasins on what game you like more?? cause either way you'll more then likely have other racers to play against in either game i mean come on were over a billion people your not the only one :P

Usually people go for games with the best review.
Personally tho id go for Forza 3 its soooo good :P