I go to high school baseball games in the area. $5 entrance fee and $7 meal deal at the concession stand; brat, chips and a drink. The kids are the Fall football and Winter wrestling talent pool as well as spring track. There are some really good games since Seniors are out to even the score for football and wrestling losses before they head out on life.
We used to go to the San Jose Giants (CA) farm club games. Really good baseball, economical, a fun old-school stadium, great food, and silly games the players would play (like trying to knock out the headlights in an old truck from 90 ft away). The games were more fun and a game, food and drink could be had for under $25 twenty years ago.