Valve's VR demos aren't a far cry from what I've seen before, but the hardware component coupled with the small touches in the demos was what sold me. I was able to move in a relatively large area and explore my surroundings, intuitively interact with objects, fall into a trance as I created color and shapes out of thin air, and revel in my ineptitude as I floundered in the world of robots and AI. Yes, the HTC Vive is a great VR headset, and Valve's controllers felt great, but it's the marriage of all of that tech with thoughtfully designed software that really sold me on Valve's flavor of VR. Valve has a reputation as the PC gamer's company, which is probably because they listen to their users and respond in line. If they manage to deliver what I experienced today before any of the competition catches up, both on a hardware and software level, it's going to be hard for anyone, Oculus or otherwise, to topple the current king of the hill.