I think it's the preeminent question for all of these platforms, really. In some ways it still feels like the hardest question to answer for the Vive, because the things on the horizon for that platform feels perpetually unknown. There's very little marketing funds pushing much of anything for the Vive; contrast that to has held a couple big conferences, trotting out names like Rocksteady, EA, Square-Enix, DICE. They're certainly better positioned to get a perception of a broader roadmap of games out there. So yeah, again, I think about some college student who has a Vive and has been playing content he finds through Reddit or Steam reviews and probably has no idea what's coming in the future beyond Fallout 4, Doom and Budget Cuts looking at that kind of messaging and thinks maybe the games really are going to be stronger on a different platform. Especially when it sounds like a lot of those games aren't going to cross the gap into PC VR.
Mind you this is not an argument from me whether this is something that is going to happen to the wider PC VR user base or something. It's just an examination of the question of whether I'd be surprised whether we see people jump from Rift or Vive to PSVR. I just wouldn't find that surprising at all, they will definitely convince some people. In some ways it's the same question as to whether Oculus has managed to convince anyone to switch from Vive to Rift - which I think is an even narrower argument to present - and yet I'm sure they have. The value proposition of any given factor of these decisions is just so magnified when dealing with such particular and expensive products.