It's quite simple, the Oculus Rift does completely change your notion of the game.
Once you have experienced this game in VR there is no turning back.
Flying ships, the massiveness of planets, huge cockpits, ships passing you by, dog-fighting under extreme visual angles, the ED experience with VR or not is night and day.
Turning back to regular monitor play, I feel like the cockpit, planets are squeezed and smashed on a piece of paper all of the sudden. Turning back instantly gave me a feeling of 'what was I doing before lol, jeez", I'm not kidding.
This is the future, I cannot stress enough the difference. Before I though VR was well just a camera you can move with your head, never thought I would be sitting in huge cockpits in such believable fashion where I can look behind the pilot's seat. Or docking on an outpost with a freaking HUGE planet on your left side feeling like it's going to eat you like a bug. The only 'price' for this is lower resolution. While the 'screen door effect' is far lower than I anticipated, you see the pixel lines and this is something we are not used to anymore in times of smartphones with retina displays, high-res, high-dpi monitors and whatnot. But even then, once immersed in the game you dont see any of that.
I cannot begin to think how awesome this will be once a 4k resolution is manageable from both the computing perspective and the head-mounted display affordability.
I feel I'm so many steps closer to that ultimate 'holo deck' dream many of us have ever since childhood.