Uh, the campground has plenty of maintenance in it. Just look at the sheer size of the resort to start...someone has to maintain all that land. There are also comfort stations, roads, the campsites themselves (did you ever notice someone "cleans" the site before every arrival?), utilities the guests use (consumption and maintenance of), check-in buildings (two because of the two types of check-in available), pools, bus stops, recreational amenities, boat docks, marina, etc... What about all the cast members that work at this massive property? Someone has to pay them, too! Just because you bring your own mobile home, doesn't mean the resort is maintenance free and your $75 is pure profit.