The Ivy League plays a Friday-Saturday format in league play primarily to limit missed class time.
The MAAC plays a lot of Fridays for similar reasons. Missed class time is a major issue with the MAAC Presidents and they instituted several rules to address that matter in all their sports a few years ago.
It's one of the reasons the MAAC doesn't make up conference baseball games that aren't played by the Monday after the scheduled Saturday-Sunday series. As a result, you'll frequently see the baseball teams having played odd numbers of conference games at the end of the season.
A side benefit in basketball is that you can often get top officials for Friday and Sunday games.
A lot of the top officials in the country, guys you see reffing nationally televised games, work in the MAAC from time to time.
A lot of the top officials are committed to work in the bigger conferences if there is a scheduling conflict with the MAAC, so you won't often see them doing a MAAC game on Saturday.
But since there aren't as many games nationwide on Friday or Sunday, the MAAC can pick up a ref who is in the area to do a Big East game on Saturday. Or if a ref lives in the region, he can work a MAAC game on his way home from working a bigger Saturday game.
The late Artie McDonald lived in NJ and used to ref in the Big Ten on Saturdays. He'd frequently work a MAAC game on Sundays, especially at SPC, when he returned to the area.