Trust me, I'm very cautious towards new things. Frankly, I'm not sure if I'll want to play
FPS games regularly with motion tracking HMD.
Ever since Quake I've been using keyboard+mouselook control scheme. Looks like the old Doom control scheme (keyboard only) will be reused. Motion tracking HMD (like Oculus) will substitute mouselook, which was used not only for looking, but also for
aiming. Are you sure your head is steady enough for those sniper shots?
See? Flight simulations use complex keyboard shortcuts, but otherwise multiple-button joysticks used in conjunction with throttle can give us
HOTAS capability - some people play this way even now, so the only change will be beneficial one: no need to use joystick's hat trigger for looking around.
http://www.youtube.com/watch?v=dOaM3oRvEOY
I'm surprised that so far only
MS FSX is being mentioned next to Oculus. They really need to reach the flightsim fans. While less numerous, those people have greater spending power.