If we're being honest, my biggest problem with the NCAA Tournament expanding isn't that they don't need more teams, or that those teams will be mediocre high majors.
It's that the new format will completely change the way you fill out a bracket. You either have to include the play-in games, which leaves you with less time to put your bracket together, or you have to wait until all those play-in games are finished before you can fill it out. Both options suck.