Why is he still here ?

Why does Newter stay in the primary race ? It seems like he gets his fat ass kicked every Tuesday, and the poll results I saw from Illinois had him trailing Ron Paul, for God's sake. Some internet speculation is that he's getting a rush from having Secret Service protection, which feeds his fantasies that he's much more important than he really is. Another suggestion is that someone may be dangling carrots to keep Newt in the race based on the theory that he's sucking away voter support that would otherwise go to Insantorum. Maybe offering to pay off his campaign debt ? Anyway, in a race that's starting to bore me to tears, the spectacle of Newt behaving like the ultimate party-crashing nerd is one of a few slightly amusing aspects.