I actually liked it when the NCAA Tourney was at 48 teams. The top 16 teams got a bye and the other 32 teams played in a first round death-match. When they changed it to 64 teams back in 1980 to let all the “mid-major-and-substantially-less champions” into the field I think they diluted the field badly. If they were to expand it to 128 teams, then why even have conference championships at all?