The SEC is not expanding now or in the near future. Why would they? I have said many times - follow the money.
Everyone needs to put on their thinking caps and unencumber themselves with the idea that the media does in any way care about the fans. Only in the fans ability to pay money for the media presentation. That's it. Period. Rivalries create fan interest which in turn creates money. For the media and for the schools (they don't care about the fans either).
If any conference expands, it dilutes the conference pie and the only way to recover is to press the media to renegotiate for more money, which dilutes the media profits. Unless they pass to cost to the consumer - us or the corp.'s paying for ads which, again, is passed to...you guessed it, us.
As far as the University of Texas, we generate a river of money - to the media AND to rival schools. So, no matter what the morons of CS/B want, their thinking people know that playing UT is a gold mine to aggy. (I say this even though they paid a mediocre coach $75M, guaranteed).