You don't know why people are so hyped about the Oculus Rift? That's understandable. A lot of systems, from the Kinect to 3D movies, have claimed to be "immersive" over the years, but none of them are all that special -- and the last time you tried virtual reality, it made you feel sick and it wasn't all that fun. So why should you get excited for the Oculus Rift, a device that shows every sign of