We have owned both and, in my openion, the 5th wheel setup is less expensive. The 5th wheel itself was very low maintenance and the 1 ton duely deseal, was more frequent but standard vehicle maintenance. The motorhome is by far, for us, a better traveling vehicle but motor, transmission, etc. on a big rig is, less frequent than a truck, but a lot more expensive. The toad, just general maintenance with added tire and barrings maintenance because it's towed.