I've very little exposure to this tech but my instinct tells me that it is no more than a curiosity for tech folks so long as you are required to wear a large,

I've very little exposure to this tech but my instinct tells me that it is no more than a curiosity for tech folks so long as you are required to wear a large, uncomfortable, expensive thing on your head. I don't know what the next evolution of this is, but if it involves "wearing" something, it needs to have characteristics like being featherweight, as trivial to take on and off as a pair of glasses, 0 friction to operate, and be extremely robust and durable. IIRC, Google Glass, for example, had none of these properties (and it wasn't VR/AR in any sense). Are we anywhere near this? How far off is hardware that's really mass-market ready?