Suppose both Miami and FSU both went to the SEC. That would mean we would play both FSU and the Gators annually. That would be very meaningful to Miami's football program, to keep the FSU game and to renew the annual rivalry with UF.
Instead of playing FSU at home every other year, we would get a major rivalry game in Miami on a guaranteed annual basis. That would mean a lot to a lot of people who matter. FInancially and, more importantly, just to the alumni and supporters, it would help toward bolstering interest in the program locally more consistently.
Also, Miami has a long history with the SEC as a conference and flirtation with membership, moreso than the Big 10. As counterintuitive as that might seem. I mean, I get the counter-argument. Big 10 is a fantastic conference in football and superior academically, and I would be thrilled if we joined. They're the new **** thing, especially with the addition of the CA schools. But I continue to believe that we'll end up in the SEC, I've heard about our flirtations with the SEC for years, and I'm betting that's where we land ultimately.
There's also ESPN. Moving to the SEC has to be the path of least resistence, just because ESPN is a big stakeholder in all this GOR stuff. ESPN can broker something with the ACC and spare the schools a lot of legal trouble, FOX can't.
SEC is an equal or better football conference to the Big 10 which happens makes more sense due to geography, historical ties, rivalries and interest, and due to practical concerns given current contractual commitments.