I like the suggestion from Tom Kewell (one of the designers on Elite: Dangerous) that inducing a little motion sickness during 'stomach-turning' flight-manoeuvres might actually enhance the experience.
http://www.trustedreviews.com/news/oculus-rift-motion-sickness-will-affect-fps-gamers-says-developer
http://www.trustedreviews.com/news/oculus-rift-motion-sickness-will-affect-fps-gamers-says-developer