Based upon the pre-sale success, and I say success on the basis of pre-order allocations being expanded as orders are being filled, PS VR is in a very strong position, compounded by the commercial success and market penetration of the PS4, to become the de facto in home VR gaming.
Of course, it's very easy to cock this up if the first wave of software doesn't deliver, support flags subsequently and consumers are left with another fad/gimmick and buyer's remorse.
PS VR should be in more homes, due largely in part to the entry level hardware requirements on the PC side of things, but who's to say how numerical superiority will translate into a better experience, and more importantly, better support.