East Carolina, Tulane, Houston,SMU, Memphis. That is half your league. Does that league deserve to play it's conference tournament at MSG? Add in UCF, USF AND CINCINNATI, and the XL starts making more sense or Mohegan sun.
From sitting at the BET, did you notice many fans from USF, DePaul, Marquette, WV, Rutgers, Providence? I know I didn't.
I watched the other teams games too (BET coincides with Spring Break for me) and the arena was empty when Pitt, UConn, Syracuse and G'town weren't there. St. John's and Seton Hall bring locals but only for their games. Providence and Villanova a smattering.
The question I have is, can UConn, Temple and Cincy do what Pitt, Syracuse and UConn did? And the answer is no. There would be fewer UConn fans likely, and Cincy could not replace Pitt. But I do think Temple would bring a lot of fans. They did for the Syracuse game at MSG.
I just don't think the few fans that the schools at the bottom would bring hurts the BET as much as the fewer fans that the top teams, including UConn, would bring.