People keep saying this and it it always so disingenuous. You can get 4 tickets to a Brewers game this weekend for $50. Honestly, probably less if you went offline and didn't have to pay fees. Anything you buy in the gate is a completely optional expense. They let you cook and drink in the parking lot and they have by FAR the most generous carry-in policy of any major sport.
Every time this comes up I just feel like people really need a reality check or are just complaining for the sake of complaining. The food isn't even good in the first place.
The avenues for attending a game for a VERY low cost are there. If people aren't willing to do that, they want a fancy seat, they want to buy dinner inside and have 2 beers, that's not on the Brewers, it's on them. A trip to the park has a massive variance in cost.