In 2008, I wondered what Huckabee was doing staying in the race as long as he did. I heard theories he was just getting name recognition and then of course he got the radio and tv show. Now I believe that he was trying to help Romney by taking votes away from McCain.
Actually, it was the other way around... there was a bit of collusion happening between Huckabee and McCain, vs. Romney.
http://www.drudge.com/archive/103856/mccain-helps-huckabee-win-west-virginia