Love Hate relationship

We have a DP. For us it's not a vacation unit, but rather our home as my wife is a travel nurse. We had a home for only two years, but in that two years the only repair needed was a new A/C. Over the last 6 months with the motorhome, we've had to replace the water heater, back brakes, & now the front brakes just overheated. Granted the motorhome is 10 years old and so we can't expect never to have repairs, but this is killing me. We left home 6 months ago completely debt free & are now about $3,500 in debt. And the front brakes haven't even been repaired yet. We've been talking lately about getting a 5th wheel & truck instead because the truck won't cost nearly as much to repair & maintain as a DP motorhome, even if the truck is a diesel (at least I don't think it will; I will be researching more before we make our decision). I think that the fact that we sit in one location for about 6 months at a time isn't helping. I do take it for a run every few months if it looks like we won't be leaving soon, but I'm not sure how much that helps. With a 5th wheel, I suspect that having it sit that long won't be as much of a problem. I definitely can relate to the love/hate issue.