Check this video out.
I am personally going to be receiving my Oculus Rift soon and had wondered about how VR pinball would work. Not that I bought it for that reason, mostly racing/flight/space sim games, but I have to admit this looks pretty impressive.
The guy in the video is a big pinball enthusiast and created a VR pinball "simulator". I have to admit it looks interesting enough to try one day, privately, because I would look stupid using it
For those who are impatient, gameplay starts around the 5:50 mark - but the explanation of how the guy made it is also interesting enough for a watch.