UMass has been in the A-10 for over 40 years! Back when UMass was good, this was the basketball line-up:
UMass, Dayton, Duquesne, Fordham, GW, La Salle, St. Joes, St. Bonnies, URI
Temple, Virginia Tech, Xavier - gone
UMass is clearly making a bold move here. There is no way UMass makes this move without support of fans, alumni and boosters, many of whom were most likely driving the change. It's a conference of all large public universities while UMass would be second in size behind Buffalo. And it's more regional than any other conference.
Granted the MAC is not a good basketball conference but let's put down grandpa's cough syrup making comparisons to other crappy basketball conferences like America East, which only has 9 programs lead by UVM. After the top 10 they all stink. UMass will jump in as one of the top programs and lift the profile of the conference. It has a few programs who win regularly. Win the conference and go to the dance. May even help the Buffalos of the conference with recruiting and a rivalry.
Football had 5 MAC programs on the 2024 schedule already. Now it will play for new rivalries and a conference championship. It's a great conference to kick-start the program and start elevating it from the bottom 10 of FBS.