This isn't high tech. In the U.S. a setup like this would be well under a hundred thousand dollars. It's not inconceivable the moving walls by themselves could

This isn't high tech. In the U.S. a setup like this would be well under a hundred thousand dollars. It's not inconceivable the moving walls by themselves could be under ten thousand. That's not going to buy you a lot of real estate in a dense city.