About 5 years ago my wife and I sat through a sales pitch at a hotel/time share place in Orlando. I believe it was a Wyndham Resort property. Actually it was a very nice place, although a very expensive proposition. The idea was you bought part of a particular unit, along with God only knows how many other people, and could use that unit for a week or two a year, and supposedly were able to swap to get a week or two at other locations around the world.
We never bought anything but did get two free nights at an Orlando hotel, which worked out nicely, since we had planned to go up there anyway and visit our youngest, who was going to school in Orlando at the time.
