One thing I'm not sure about is if they have regular and preferred parking for concerts, or if everyone is the same. I hate parking fees, but you can't have 40,000 people trying to park in the preferred lot. They also have a limited amount of times that they can schedule these. They either have to pick a summer date during a long road trip or right after the season ends. I imagine November could get dicey temperature wise, since they can only heat 30 degrees above the outside temperature. I know there have also been rumors of trying to do basketball, including a final four. They would have to figure out extra heating, plus the timing would be tough with them trying to get the field ready for opening day. It might also be a drawback that they don't have any hotel rooms right by Miller Park.