Eddie, the brother who owns this truck and trailer is my youngest brother and he and his wife go to Washington state for the summer. He used to be an RV salesman for a dealer in Oklahoma and later in north Texas, and then he was one of the first RV technicians or mechanics for Camping World when they went from accessory installation only to full service repairs, also.
Of course, they go to Ellensburg, WA, because that's where his son, daughter-in-law, and two grandkids live. And his wife has family there, too, since she was born and raised there.
Our other brother (13 months difference in their ages) is the one who still works as an RV service technician. He lives in a motorhome, has never been married, and never moves his motorhome anymore; just stays in Elm Mott year round. I guess you might say he's semi-retired; still in the RV service business, but I think he spends more time golfing and fishing than working now. And the younger brother helps him with some jobs during the winter when they're living in the same RV park.
And I think you're right about diesel pickups now. They are definitely better for towing heavy loads, but I'm afraid their other advantagesm such as longer life, are pretty well negated by the higher initial cost, higher cost of diesel, and low fuel mileage. But of course, I don't know just what kind of mileage the Ford diesel pickups are getting because my brother's truck is an F550 with 4.88 differential.