I was discussing this issue with an FSU and some Clemson fans. They are only looking at the $$$; refuse to consider new costs; dealing with Texas; academics; path to chamoionships. Basically, the fans are looking at the new car shine butignoring what it will cost them to get the new car.
I do believe the school administrations are more pragmatic. They look at the costs and the hassles and the realities. They see TAMU wanting away from UT since the 90's, Arkansas left, Nebraska left, Colrado left, Mizzou left. They see OU, OSU, TTech, Kansas attempting to enter the Pac 12 and see Iowa State, KSU, Kansas, Baylor trying to gain acces to the Big East - essentially, there is no love lost for UT.
The SEC is a different story, but hopefully the SEC does not want FSU and Clemson.