The Big 12 would be a terrible fit for us for so many reasons, which have all pretty much been covered in this thread (travel, lack of rivals, culture, recruiting, etc.). I simply don't think we would fit really well there. Why does everyone think we do it for the $20-30M extra annually? It sounds like a lot to us normal people, but if you think about it, it's not even a rounding error in the state's ~$50B (!) budget, or even if you just look at the university, it has close to $1B in revenue every year. Seems like an insignificant amount when you think about the consequences - possibly derailing our entire athletic program.
I know it's not the AAC again, but let's be real, it's not that far from it in terms of the types of schools involved and lack of real rivalries. The only conference that would be worth joining is the Big10. Otherwise, just wait and see what happens with the ACC. In an ideal world the Big East merges with the leftover schools and keeps the non-football schools too. We're clearly fine where we are right now, we have the luxury to wait.