What the RV Industry needs and how it works.

BurbMan, your point about innovation is right on target. My 2003 Shadow Cruiser had an aluminum skin, wooden frame, and fiberglass insulation between the studs. My 2012 Fun Finder (almost the same unit) has a fiberglass skin, aluminum frame, and thick styrofoam on all six sides, sandwiched between the layers. A huge improvement in insulation from noise and temperature, far more durable and rugged.