When VR becomes something that is effortless to use and I can just slip on some glasses and not even feel them on my head is when it will break out.
Apple has some fundamental aspects of VR right such as controlling the UI with eyes and slight hand movements. Also most apps are geared towards sitting down. The problem is their headset is too heavy.
edit: Also I know there are people the above doesn't apply to, I'm basically going off of revealed preference. There is a reason why there are so many people that prefer watching others play games rather than playing themselves for example. There is also a reason mobile games are so popular over desktop.