chest of exit fees to use to entice even lower rung teams to jump to the MW. And the lower down the totem pole you go the lower the number required to entice them.
By the time you run out of FBS schools willing to jump on the Titanic you can just throw $5M at Tarleton State, whatever that is, to go from FCS to FBS.
This is why conferences never die, they just dillute themselves. Those left behind end of up with massive payouts that they can use to perpetuate their own existence, if only barely.