I have seen rave reviews of the Oculus Rift (virtual reality headset for video games, started as a Kickstarter Project). Now, this video is one that truly shows how amazing (immersive) the headset is.
Check out this video of Brandon wearing the Oculus Rift developer headset and trying to stay stand while the headset is playing a roller coaster video. In one part of the video, he almost knocked down the monitor. It is enough to convince me that future gaming will be awesome.