they are different things.By people of VR you mean that absolute minority? Same as people with 4K TV?
Sony is going to launch their own vr which will only be used with the ps4. If it offers a sub par platform that is what customers will remember and they will see content come out for the much more powerful pc and eventually scorpio .
4k tv is different , its a tv upgrade that lets you use your console and regular tv services at higher quality.
If sony isn't careful they will poison the well so to speak for vr