Unfortunately I see the same thing happening every time we travel. Due to the economy, a lot of people have been forced out of their brick home and in to travel trailers and motor homes. In most every RV park were we have stayed, there are a lot of extended permanent residents. They are not there for a season or a few months, and then on to another location. They are living there for an indefinite period of time which in some cases has already exceeded a few years. The RV they are living in will not move until their financial situation turns around. There was one RV park that we saw that had so many permanent residents that the school bus stopped there to pick up the children.
In the meantime, the motor home or travel trailer is just rotting away on the exterior, while still providing a place to live for people that have no other place to go.