Not too long ago this was just funny speculation and now it's real in a matter of years. Maybe I'm going to see a holodeck in my lifetime if things progress at the same speed.
This is a great tool for all sorts of simulations. It'd be researchers like NASA that would probably use this first. I don't expect many VR games for this as it is beyond the affordable price for most consumers. But this could be had next arcade where people pay for time and have great VR experiences