Simulations have been around like this for years, like he said, the rollers are military spec, this is because they've used realistic simulations for years, its just expensive and needs a lot of room, it isn't really viable for commercial use
Theyve used simulations for years, but not anything like this, they use low graphics immersive environments, which granted probably still gets the job done but for gamers they deffinately want the graphics to go along with it. For me though playing with glasses rather than a screen would make it even better.
Also Id say "it isnt really viable for commercial use YET" lol