Think of VR as it exists today, as the leading edge of a vast new experience, that will continue to unfold for years to come.
What we have now is simply the first generation, thats mainly focused on early adopters. Remember the first video cards? Really limited, expensive and mainly for early adopters.
Now, compare what we had then, to something like the Nvidia 1080...^^ I suspect VR will advance much faster than video cards did.