It is a sum of money you pay so you can be recognized as an owner of the property.The "purchase" allows you a certain amount of time in your unit for a small daily fee. Preferred reservations for additional time at a higher cost. The sales angle is that you are supporting the nudist lfestyle. I could not find any way that it would ever be profitable. Factor in weather disasters, legal changes regarding nudity on Orient, a host of many other potential legal issues and what you have is basically a "donation" to the nudist lifestyle
Me thinks a group of buyers interested in single ownership "Club O", would be better off banding together funds and buying "N Resort" in Jamaica. Incorporate and make purchase. That place has unbelievable potential with the right investers.