Hi jwd, there all about making a smaller lighter camper for smaller trucks to compete with the likes of FWC and ATC. They are made with the same materials and conveniences of the large Alaskans but in a smaller lighter package.They do have one advantage over FWC's and ATC's that I can think of, they have a full sized door.On the negative side they are still about 3-400 lbs heavier than the FWC's and ATC's, which in turn means beefing up your suspension, extra cost.
Hope this helps,
Kevin.