64 got ruined when one conference divided into two essentially creating the 65 seed tournament.
The double-12 seeds playing each other doesn't do much for me.
Also, with 64, the bubble burst teams actually seemed like decent teams. Although they are essentially only adding 3 more at larges, I really have a hard time feeling bad for any team that doesn't get a bid now.
It won't ever go back to 64, so I'm good with this.
Also, as mentioned with all conferences having tournaments, it's already an open tournament.
Only thing I would change is get Syracuse, Pitt, and Boston College back in the Big East for a good Big East tournament.