I am planning on downsizing my class A to a B+ rv under 25 foot, was also looking at new trucks and a camper as a 2nd option, so with the price of a new F-250 to F-350 and a new camper with a slideout...
One thing to consider is that when you ride in the pickup cab, you have fully rated roll cage, properly anchored seat belts and dozen air bags, who will protect occupants in case of accidents. Typical ClassA has no cage protecting the people and for long years they did not have air bags. In case of any serious accident - the roof kisses the floor. ClassC might be between, but that depends a lot on the build.