please help me understand bow tops

All,
I've seen other discussions on here about bow top campers. I really like the light weight and the spacious interior. The wood beam and canvas construction is very reminiscent of a yurt or teepee. I found this picture and I'm really enamored with the thing.
http://www.flickr.com/photos/62930759@N02/5972191055
I'm a family man with a wife and two young kids so the added space without the added weight is really appealing. However, some things have me scratching my head.
First off, the small design of a teardrop means that you can stay warm mostly with body heat alone. It seems like it would be harder to stay warm in a bow top.
Second, I'm not sure how well they get down the road. I'm trying to imagine if you could safely move a bow top down the road at 55 mph.
Third, does anyone actually camp with a bow top? I don't want to come off as rude but I'm wondering if when you pull it into a national park (or any campground) if everyone receives you as the village idiot. Are you even allowed into campgrounds with this thing?
I'm wondering if most people just build them and park them on private property for a getaway. That kind of thing.
Anyone with knowledge to this end please straighten me out.
Thanks!
I've seen other discussions on here about bow top campers. I really like the light weight and the spacious interior. The wood beam and canvas construction is very reminiscent of a yurt or teepee. I found this picture and I'm really enamored with the thing.
http://www.flickr.com/photos/62930759@N02/5972191055
I'm a family man with a wife and two young kids so the added space without the added weight is really appealing. However, some things have me scratching my head.
First off, the small design of a teardrop means that you can stay warm mostly with body heat alone. It seems like it would be harder to stay warm in a bow top.
Second, I'm not sure how well they get down the road. I'm trying to imagine if you could safely move a bow top down the road at 55 mph.
Third, does anyone actually camp with a bow top? I don't want to come off as rude but I'm wondering if when you pull it into a national park (or any campground) if everyone receives you as the village idiot. Are you even allowed into campgrounds with this thing?
I'm wondering if most people just build them and park them on private property for a getaway. That kind of thing.
Anyone with knowledge to this end please straighten me out.
Thanks!