recreation vehicles only?

Most people think of boats and yachts as a recreation vehicles. But I believe that it's a good way to invest money. I'm not speaking about investing money in a boat but a good way to start a business. I believe that this market will see a tremendous growth in the next decade.
Why do I think so? Boat or yacht is better than house and in most cases much cheaper. You can live and travel at the same time. And you pay less for the credit ))))!