You get two states added to your cable.
I also "think" ND is a dying brand, and they would "die" faster if they were in a normal conference. They used to be the program Catholics around the country adored, I think that day is ebbing. Sure, they have their own TV contract, and it probably is major, but over time? When I moved the Cincy, the hope of every footballer going to one of the Catholic schools there was an offer from ND, and they took it usually, but later that simply disappeared, top players wanted whatever program would help them go to the NFL, and it became Ohio State more than ND (opinion here).
I also think ND could start having 9-4 and 8-5 kind of seasons in a conference, if that, and allegiances would drift away to a local school.