I don't understand the craze about VR. 3D never became that mainstream, why VR? Who is gonna be wearing those freaky goggles all the time?
Let me present you with a scenario.
Let's say you have a family relative that is in mid 50's. They experience a heart attack and will require a bypass or pacemaker or who knows.
Fast forward, your relative is undergoing surgery for the bypass. Here is where AR/VR come in. The surgeon puts on AR/VR goggles and now more information is being poured onto the screen. Things like inventory and personnel info. Now they look at the patient and make the incisions. As they open up the heart area, more info pops into the AR/VR device such as flow of blood and bpm by looks. Now imagine additional tools, IoT medical tools, being used inside the heart to determine other factors as density of blood and suggestions as to where to perform additional surgical operations for the procedure.
VR + AR+ IOT = amazing stuff ahead. It's not just for gaming, it's for real world applications. Architects can store their blueprints into their AR device and produce even more data as they plan and help with construction.
Electricians use it to provide different Amp outputs on an electrical box without having to disassemble or detach anything.
These are the things that Apple, Google, Samsung, and other manufactures are really wanting AR/VR to go into. Gaming and entertainment is just a bonus, but that's more my opinion about that.
FYI, if you want a multi-million dollar company to build, creating AR stuff for medicine will bank it big time.