haulers downsize, or get something smaller in addition to?

Thanks,
My usual rig is a 40 ft diesel funmover.. some of my trips are short, meet a couple friends and ride Kennedy, Panguitch, Death Valley, etc. A place where not much for the family to do.

Have already taken the van to Doheny Beach with the 4 yr old, overhead bunk works well, full bed, bathroom, kitchen, generator and ac. Drives almost like a car, I was surprised. Never thought the funmover was that bad before. Even drives well in wind. The van had 30k on the clock, I couldn't pass it up. Perfect for one toy..