I've been interested in VR since the Oculus was being first talked about, then got pushed away somewhat when Facebook bought them out and was planning on just sticking with 3D monitors and glasses. I never knew about the Vive till just a week ago, and I'm almost sold on it.
Best things about it so far: it's Valve, so it will be gamer oriented, and it's open, so developers can easily incorporate support into their games, unlike the other 2 VR offerings. And speaking about the other offerings, Vive should also beat them to the shelves, and as Blaylock said, will be way ahead on tech.