Moving up to FBS would be nice but I really see no advantage to joining the MAC except having a lot more local rivals. It is an obvious "next step" to IA since no other conferences in the region would be willing to have an FCS school join their ranks. However, theres an extra scholarship burden and no real prize for a good season. MAC schools that go 9-2 or 10-2 and win their championship.....Congratulations, you get to play in Detroit a few days before Christmas in a Bowl game most people outside of Ohio and Michigan have never heard of. Being FCS you have the advantage of still being able to compete for a national title which many recruits without BCS conference offers find attractive.