It is a tough choice to give up a successful television show. Something else goes into its slot and if you want it back, there are no guarantees. And the evangelical social conservative niche that the governor had in Iowa in 2008 has some very strong competitors for that turf and others as well this time around with Rick Santorum and John Thune in the hunt. Winning Iowa was great for Mike Huckabee’s career. Losing it might cost much more than momentum in 2012.