The first virtual reality ads highlight how hard it's going to be to sell VR

You’ve probably seen a virtual reality headset or two at this point. Facebook’s Oculus Rift headset, or PlayStation VR for the PlayStation 4, or maybe even HTC and Valve’s Vive. These guys: Chances are, however, that you still haven’t used one. None of the three headsets above have been released for purchase. It’s more likely you’ve tried out one of Google’s VR headsets, the Cardboard.  This guy right here: You might have noticed at this point that, in the above images, people using VR are having a blast. Open-mouthed awe is big in VR demos — that’s the magic of