Don, that does get expensive. I assume that they don't give away the hot dogs or beer either.
TV revenue seems to drive everything now. F1 has moved many of their races to the middle east or wherever since these places build new circuits and guarantee huge amounts of $$$$$. However, there are actually not very many people in the stands as they depend on TV revenue instead of the gate. Baseball's World Series scheduling is now dictated by the TV network as this is where the money is. NASCAR is in the same boat.
Wayne