I agree.

The best tennis game I ever played was Mario Tennis for the N64. That didn't have any pro players in it. It had a dinosaur, a monkey, a princess, and some other fictional creeps.

I think people place a bit too much emphasis on things like this. I really wanted Agassi, and also wanted Connors and Lendl, but the game will ultimately rest on how fun it is to play, period--gameplay. That's 90% of it for me.