They will realize very quickly that $30+M > $20-25M.
Now, programs like TCU, Baylor, WVU, and Iowa St. likely don't have anywhere else to climb. But Oklahoma, Kansas, and Texas sure do.
So, I see a couple of options:
1) Oklahoma, Texas, and Kansas - and may be Kansas St., Oklahoma St., and Texas Tech bolt for greener pastures.
2) B12 gets proactive and finds a way to add FSU, Clemson, and perhaps Virginia Tech and Louisville. (and a couple others if it makes sense for the conference network).
In any event, the bar for how much value a newbie would have to bring to conference is rising - which doesn't help BYU.