Where has all the money come from to clear out the boat inventory at Bass pro?

Anothr boom market for the RV is the RV park where people live in these instead of rent, much more economical. It is here, everywhere in Tx where people work and drive to Houston for example, and others that just live in the Rv and not rent an apt,retired on SS Disability??? or what/ But the RV parks are springing up like weeds.