In our park we "own" the lots. For resale value most of the new owners or long time owners, when replacing older units, are going to 38' - 40' 5th wheels of a better quality. They offer lots of space and great storage. But most importantly a used 5th wheel is easier to sell than a used park model. It gives the options of selling the property on it's own, the 5th wheel on it's own or everything as a package. In our area the experience has been that the margins have been better and quicker sales when sold separately.