I don’t know about most people, but I shopped for a truck camper because I needed a truck not the other way around. For me, I needed a 4x4 for a truck camper because I needed 4x4 for my truck for the rest of the time. In most states in the Northwest, 4x4 removes the requirement of needing to chain up for almost all of the time while crossing mountain passes..
I think most people are the same in that they buy the truck they need irrespective of truck camper. Either 4x2 or 4x4 can haul the weight. Buy the truck you need for other purposes.
I certainly understand the NW and chains required as our local news station is Spokane news..But living in Idaho where I do,that is not a concern..Rarely is something like Whitebird hill, required with chains..And that's the perk of owning an RV..Camp out the storm..
From what I see on the internet(laffin) a bunch of people rarely use there truck for other stuff..It is mostly used just to haul the truck camper and not run to the store or go see grandma 300 miles away..They take the car or other non-gas guzzling rig..
Interesting...