It should be pointed out that the "First gen VR sets" sold to consumers were on the market nearly 20 years ago. We're coming a long way from there, and have a long way to go with them.
Will it be expensive and will few adopt it quickly? Yes, of course. However the same can be said about Radios, then TV, then Colour TV, home computers, 3D accelerated computers, HD level resolutions, 4k resolutions, etc.
The most common display size was still a standard 1080 monitor in the steam hardware survey last I had looked (The next most common was smaller, and followed by having TWO 1080 monitors I believe.) and that is ancient tech by today's standards of what can be done.
VR display will have its place. I know that I would much rather drive racing and flight sim games on a medium res VR set compared to flat monitors of a similar computing power, because there is frequently stuff 'in other directions' that I want to glance at than what can be rendered in a setup using multiple panel monitors.
Of course it won't be suitable for everything, but it doesn't need to be. It just needs to be able to be comparable to a high res quality 3 monitor setup and the graphics cards to drive them... Which honestly most sets already are after you account for the cost of 3 good monitors, good stand, and a reliable head tracking device.
