Just got done washing mine. about 4 hours to get the hose ready to cleaning the widows, Awning and The roof wash & inspect. PC of cake, Just hours. It was hotter than skunk and got sunburn on my forehead. No reason health wise to not wash it. I even have a bad herniated disc and a bad SI joint in my back. I still do it. I pay the price that night and take meds, Stick on my inflammatory patch and lay on my heating pad.. But the work still got done. Camper is shiny new.
I gots a hose, I gots a ladder and i gots the time. And i work 50 hours a week still, Not retired. And i still have a million other things to do around the house.
Just plain old laziness and or, As you said,, Money.
2001 F250 7.3