Pro: Attendance/ticket sales
Now that alcohol can be served at games, attendance should skyrocket since many students/fans are late coming to the game because they want a good long-lasting buzz for the game, or they leave early because their buzz has worn off and can watch the rest of the game at the bar.
Yes, these are all personal examples.
People can pre-game in the parking lot, make their way into the game, and grab another libation to keep the good times rolling. This means more people in the stands which means bars and restaurants in the area won’t have to turn people away because they’re at capacity so it’s good for the Lansing area economy as well.
On the flip side, people will stay for the whole game if they grab that last-call beer at the end of the third quarter and help the Spartans to victory until the clock reads 00:00. They get the fourth quarter, the walk to the car, and the traffic back up to sober up. It’s a win-win for all.