What will drive Air Force into the Big East will be, if anything, that sweet cash. Right now, Air Force makes approximately $1 million per year in the Mountain West. That may change very soon, as the Mountain West's current television contract expires in 2015. And given how much the Mountain West has lost and the quality of what it has gained, expect the conference to make either an amount, at best, equivalent to the current contract, or more than likely, lower. Lower is not good, and if the Big East can negotiate a television contract worth even $5 million per school, that would be a huge pay day for Air Force.
I think the main sticking point with Air Force is, they like the Mountain West conference. They've pledged their loyalty to it and already refused to leave it once. The Air Force Falcon's home turf is in Colorado Springs, Colorado. Pretty far from ANY Big East school, save Boise St. I don't think Air Force wants to leave a conference it helped found with Colorado St., New Mexico, UNLV, and Wyoming. Yes, the Big East has Boise St. and San Diego St. Big whoop. Air Force would be an outsider in a predominantly eastern conference. Air Force is comfy right where they are.
Seeing as how the Mountain West television contract doesn't expire until 2015, its teams have time to build their resumes and make their cases for a better television contract. In addition, their conference has just as good a chance of sending a team to that 7th bowl game as the Big East does. That puts the Big East and Mountain West on equal footing, and the Mountain West may prove to be a superior conference in the long run. Why should Air Force leave all that behind? Do they even have to decide right now, or can they put it off for a few more years to see what kind of contract the Big East lands?
It boils down to money. If Air Force wants more money, they can sell out and move to the Big East, where their paycheck will surely be a little larger. But the move wouldn't feel quite right nonetheless, would it? I think Air Force is more likely to join the Big East than BYU is, but I still don't think either of them will decide to join up anyways.