Having a motor home is very nice, especially if you are advancing in age and your kids are all grown up and have their own activities. You and your husband can just drive to the country for a couple of days, spend time fishing, read your favorite book in the afternoon, build a campfire at night, and count the stars before going to bed. It just has all the perks.
But of course having a motor home will require some maintenance budget on top of your fuel expense and your oil changes. You will need to set aside a budget for motor home repair because it is bound to break down after several years. And while you will have to maintain your car, this is added expense so you will just have to have some extra for repairs whenever something happens. And make sure that you have the appropriate insurance policy for it, too.