I had worked on earlier model of Microsoft surface table. They had the same pitch that these multi user multi touch devices will be used by education and banking systems etc. they don't work simply because its not solving any problem. Why would people go out of their way to learn new ways of designing, developing and communication just so they can share their work in hologram? What does it solve? Until this is answered AR and VR are not going anywhere.
AR has huge business potential in any job that requires use of both of your hands, especially for tasks where you’re moving around and don’t want to be tied to a monitor.
I agree with you when it comes to jobs that are currently done with monitors on desks.