I find that keeping a good wax job on the camper makes cleaning it a heck of lot easier. It seems that you either do the work up front, or end up doing twice as much later.
Sometimes I envy those who just use their stuff and never worry about what it looks like. But I do take pride in my vehicles and camper, and proper care does help resale value if that time comes along.
I recently sold my jet boat, and the buyer couldn`t believe how nice it was. And he willingly paid a premium because of it.