The economics are crazy. We went to a minor league game in Daytona and spent almost $100. That did include a $30 Daytona Tortugas T-shirt but still not soemthing I want to do more than a couple times per year.
The same thing has happened at spring training. It used to be a reasonably affordable, relaxing break at the end of winter to head down to Florida to catch the Nats at a few different ballparks, but the experience is pretty much as expensive as going to a regular in-season game these days.