Scott Brown got the audience laughing pretty hard when Chuck Todd asked him why he didn't run for the Senate in Massachusetts when he had two chances to do so.
Brown answered, "Because I live here," which sent the audience into paroxysms of laughter. And it wasn't laughter like "What an obvious answer" laughter. It was laughter like "Yeah, sure you do, you poser!"
Seems the people of New Hampshire aren't inclined to look at astroturf and see green grass. Scott Brown is an opportunist, and they all know it.