Games at Busch Stadium are great. There's always a good crowd; not an empty stadium. People really get into the game. St Louis loves their Cardinals so its great. Of course the food and stuff is expensive and you will have to pay for parking somewhere. (the further away it is; the cheaper it is) I really like going to games at Busch. They've got everything from box seats, the bleachers, to the nose bleed section. You can take the metrolink if you want to avoid parking and traffic. But i've never had problems with traffic.
Pros: fun, team spirit, cheap tickets