Some care and attention would go a long way with RV's and how they are assembled, even using the same construction methods/materials. We had cupboard door inserts falling out and actually doors coming off in our current unit due to shitty assembly. And it was only towed once, from the dealer to our lot where it has been parked for 4 years.
That's what you get for a house on wheels for 30k. Ooops, I mean 50-60k with the new pricing. I'm expecting RV pricing to come down sharply in the next year.