I have moved already, so any contrarian advise is no longer useful. I leave behind fresh lobster and Acadia. New Hampshire offers the Merrimack and some amenities of a larger city, such as museums and more nightlife. I hope to stay here up to New Year's eve 2013. Then off to the next visitation.
No you should not move from Bar Harbor, Maine to Manchester, New Hampshire because Maine is one of the coolest states in America. You are lucky to live in Maine and should be grateful. Stephen King lives in Maine. The cold weather is really awesome there and the people are friendly.