True, I spent a decent amount of time on the Sea King simlator at RNAS Culdrose when I was a kid and saw that you didn't even need to have the hydraulics on for the scenery to bugger up your balance after a while.
I suppose that the VR headsets make it a cheap way to change the rollercoaster ride. If say flying in a battle stopped being popular you chould easily change the program to riding on a dragon and hey presto new ride available. 
But again, you can do it in a sim - no need to build a roller-coaster....
It can be flying a Spitfire one day, the Red Arrows the next and a dragon the day after....
But you can't beat the thrill of thinking you might just fall out of the harness and die....
http://youtu.be/S0GBoLU6gBA