Sorry for some over-enthusiasm here, but...
If there is ANYTHING just made for VR it's flight sims. Yes, stating the obvious...
Seriously *YOU ARE* in the cockpit, say, of a 737. (I am using Perpar3D right now with a ton of addons and sceneries)
You are literally looking out the window from your seat, the buttons, levers etc. look real and you want to touch them. (This reminds me, I still urgently want to get my Touch)
You start the engine and start the plane. There is rain outside, maybe some fog, lightning etc.
You get the 737 up to speed and the feeling is ALMOST like this typical feeling of incredible speed at take-off in a real plane, minus the forces of course.
You lift off etc.
You go up through the clouds
It's absolutely...breath taking...words cannot describe it. You ARE in the fricking plane.
It's not just that "you think you are there" (this doesn't describe it imho) because I could apply this to a normal game as well. I mean you really ARE there except that you can't touch things, it's so incredible real.
If someone still never tried VR...let me explain it this way: The difference is like seeing a photo album of a vacation in Hawaii, or actually BEING in Hawaii on vacation. There is not even a debate what "quantum leap" in experience this is. Now playing this in 2D just seems so poor and pathetic.
Edit: Being in the plane is so real that when I first "played" this I really expected the small door in the back opening and a flight attendant coming in the cockpit serving coffee. It's so awesome.