NH has more miles of groomed sled trail than it does roads. Last year it was 6800 miles of sled trail!! Of course some of it isn't groomed very well but .... if it snows you can ride it. My main legal riding dirtbike area is about 25 minutes away from me is 28 miles of trail. In the winter if you drew a circle around me 25 minutes out you'd probably have 300 to 400 miles of sled trail. None of which you can ride on a bike in the summer. State would be some kind of dirtbike wonder land with 6800 miles of legal dirtbike trail!!
those things look like a neat toy and I bet they are fun in powder but ... a dealer was running one around here last year .... he ended up with a broken arm ... icey northeast trail, off camber inside turns, sleds coming the other way ..... no thanks!!