Picking The Winner

Quin Hillyer wonders if voters in South Carolina will embrace Romney simply because he's expected to win the primary:

[I]f some polls are to be believed, there has been some movement toward Romney even though polls also show South Carolinian Republicans to be, on the whole, more conservative than Romney and long confirmed in being disposed not to be very warm to him. Is this movement just another rush to jump on a bandwagon? If so, why? How does it benefit a primary voter who is NOT a political activist to be an anonymous rider on somebody's bandwagon? I've never understood the mentality of rushing towards a perceived winner just because he is perceived to be a winner. What good does that do?

Jim Antle chips in two cents.