I'll just add that it all depends on what your idea of fun is.

Indianapolis hosts the Indy 500, Brickyard 400 and US Grand Prix: the highest levels of auto racing. But each event is surrounded by numerous short-track, dirt-track and even go-cart races around the area. The top name drivers often join in on these other races, because they say they're more FUN. And they usually get beaten by the up-and-coming drivers!