I am not sure there is a net benefit to ownership. They still need employees to clean sites and restrooms, mow grass, do repairs etc. They would also need someone on call to handle emergencies and other issues that are time sensitive. Plus, without on site employees there is no security. They are exchanging the cost of a couple of employees for the added costs of all the automation and foregoing additional revenue streams such as cash customers and camp store sales.
There is always people looking for passive income opportunities and I suppose this concept might have traction if sold to investors that way. But anyone who has fallen for that pitch and bought laundromats, car washes and vending machines with ll tell you the truth is these fully automated businesses are anything but labor free.