Always recommend going for livestock and free concerts. Last year saw Nightranger play to a very small crowd--fantastic. This year, .38 Special plays on Oct 8. A good deal for the price of admission and a couple overpriced beers.
I live walking distance. We get season passes go probably minimum 5 times. I usually drink 2 beers on the walk there. We mainly go for food, shows, and shopping. It's a great place to people watch too. Also, the season passes don't have names on them. So we let friends and family use them as well.