Somebody wanted pictures, so here they are.
Ronnie, a park model is a semi-permanent mobile home. You can see one behind my motorcycle trailer. They get towed in, then they are blocked up level, anchored to the ground, the wheels are removed and they are connected to the water, electrical and sewer services. You buy the trailer, but rent the space in the park of your choice. Moving them is expensive, so park owners want more park models. A park model provides year round rental fees and the owners aren't as likely to move when the park owner raises the rent.