I once demoed the VR goggles at Facebook HQ on a tour, my boss and I put on the glasses and were immersed in a world where there was a large dragon. We really roared with excitement and kept saying “wow, amazing” and shaking our head in astonishment as we took the headset off. Then, later we said our goodbyes and left. In the parking lot my boss and I turned to each other both agreed, that VR headset wasn’t that impr…
There's an excellent video of John Carmack talking about this and how to solve it. This is much less of an issue now.
https://www.youtube.com/watch?v=lHLpKzUxjGk
I agree with you though that there aren't any killer apps for VR/AR yet, and it remains to be seen if there will be any at all.