Any team hiring Saban is getting a money whore. He has no loyalty AT ALL. Just ask Michigan State. And LSU. And probably the Dolphins. If he goes to Bama and succeeds, he will be gone within 3 years to the highest bidding NFL team.
I think you are absolutely correct. He would not be my first choice. I've not heard the exact terms of 'Bama's offer so I don't know what kind of buyout in is the offer. Perhaps it will be high enough to make Saban stay for a while but then the NFL could afford it.