One other point not mentioned is that a motorhome is a box truck with stiff suspension, full of appliances, etc., that is subject to road shock and vibration every time it is underway. The box itself is subject to damage/deterioration over time and miles driven and somewhat dependent on quality of original construction. 12 volt electrical connections to and from furnace, water pump, and all appliances can corrode or loosen causing you to spend time troubleshooting and fixing things before you can depend on everything working with "all the comforts of home" Old converter/chargers and batteries usually need replacing for reliable 12 volt power.
