Well, just like stainless steel appliances.... how do you keep it looking clean with all that white. Yes, stainless steel appliances look elegant when they are clean. Add a couple 8 year old kids with sticky fingers and it only takes 5 minutes for all that "glitz" to look horrible. Same with all that white. Definately, THAT camper is not for a family with kids! Can you see shoe prints and scuffs all over those white walls? Muddy hand prints on those white cushions at the dinette? Greasy paw prints at the cabinet doors? Fixing bacon on the stove and all that grease splattering everywhere!
Oh, the white, sterel hospital approach looks nice ... only when it's new. In actual use, it's got to be a nightmare to keep it looking that way for real world user campers.
After thought:
Take that camper to Georgia and let the kids play in the red-clay dirt. See what happens to the interior of that beautiful white then?