I had six 5th wheels since '84. The last was a 2006 37 ft'er, great for seasonal camping but a horror trying to take it out for little weekend ditties.
I no longer stay seasonally and now have a 23 ft Funfinder. Though not comfortable for extended stays, it's great for my present use which is weekends and long road trips. The ease in getting around tight places and on the road traveling far outweigh any loss of space. Most of that lost square footage I lugged around
was empty floor space and unneeded storage.