I've done it once and it was extremely easy. I rented them on the DIS rental/trade board (214 pnts for $10/pnt).
That said, I agree completely with HB Cat. Don't buy with an expectation of rental. It is probably not a great "business" move. Consider the possibility of rental much like the other parts of the program (concierge collection, world passport, etc..) nice opportunities which provide some flexibilitiy with the points, but all of which may go the way of the DoDo Bird someday and you have no control over when.
The best and most predictable value comes from use at the
DVC resorts.
Good luck with the decision!
