Wow, cool site, Seth.
If I do fly into Portland, I doubt I will be giving much business to Maine, other than the rental car. I mean, why pay sales tax when you don't have to?
Everything in NH seems close enough that I can fly into Portland and not detract much from the time I have to spend in Manchester / Concord/ Keene/ seacoast area. Everything's more spread out in Utah and Colorado.
I plan to camp 4 nights and probably will have 2-3 days to visit the other parts of the state.
Good information about the body scanners - another reason to avoid Boston, besides the one I already knew about traffic.