Also OP, the reason that piece is so expensive is possibly because it was created by an already well known and established artist, making it a collectors item as well as an attractive work. No, its not a quick fad hustle for any jack ass with a copy of Photoshop.
Again when the day comes that decent AR glasses and VR headsets reach that $100-$200 price range and we are all interacting with each other within dynamic, photorealistic virtual reality spaces, artwork will be just the beginning of what people begin investing in.