We just recently traded our 5th wheel for a new diesel pusher. Far more expensive, no doubt. Owned 3 5er's over the last 25 years and loved them. However, now retired and getting older just wanted the pleasant ride and easy set up a class A offers. So far not finding fuel mileage to be an issue as our new Legacy 36' DP gets slightly better than I did with our GM duramax pulling a 32' Montana