Ron Paul knows what he is doing (if anyone does)... he's a veteran at winning as the underdog.
Huckabee's support is not just crazed Christian evangelicals. He is touting the FairTax, which is a tax proposal that has A LOT of nationwide support owing to the efforts of talk radio host Neal Boortz of Atlanta and Congressman John Linder of Georgia. Huckabee is a shoe-in for Georgia IMO...not to mention that it's really conservative there. (I know, I just moved from there to TX, and it's MORE conservative than TX!!)
I don't foresee anyone dropping out anytime soon, especially as the money has been placed on winning future states (SC, FL, etc) They'll at least wait to see the return on those investments. NO ONE will drop out of the race after MI (except maybe Hunter).
All I hear from the naysayers I talk to is that Ron Paul will never move beyond 5th place. 4th will let me stick it to 'em for now. So 4th isn't so bad.
Repeat after me: Long Haul, Long Haul, Long Haul. A lot of us are new to politics and are dead-set "sure" that everyone must come around to Dr. Paul soon. Unfortunately, that's not the case unless we keep up a completely relentless but also ever-increasing efforts to get him elected.
Stop worrying, start working.