Alternative to an Airstream's quality and beautiful windows?

A tow vehicle is suspended between two axles and rides over obstacles fairly well. A trailer pivots up and down around a center axle(s). As the tow vehicle takes peaks and dips, the trailer will respond with exaggerated motions at it's front and rear. I never said they can't go off road, I simply pointed out that their ground clearance can't be equally compared to a tow vehicle. I also tried to nicely say something else...