Not much

Not at all. It's for enthusiasts, way to expensive for mass marketing. The people who will buy it day one already have a PS4. I don't have any idea how it will play out in the long run though. It could be the next big thing, something everybody wants to have and we'll see PS VR 2.0 bundled with every PS5 or something. But it could also die a slow and painful death like PS Move.

You're not talking sense. To put it mildly.

"Wii had Wii Sports, which pushed millions of consoles. PSVR has...?"

 PS VR has? Is this an honest question? Or do you suggest it has no significant support? Anyone who is following the whole VR thing knows that there are plenty of games solely meant for VR (Rigs, Robinson, The Assembly) or with VR support (EVE Valkyrie, GT Sport).

"This whole VR thing seems premature, so many tech companies rushing to capitalize on a market that doesn't exist yet. "

Yah, so tech companies are not supposed to rush an non existent market. But if no one is rushing how should a market of formidable size ever come into existence? And one might have the grand idea that tech companies rushing in, investing, promoting, developing, supporting, that it might really have something to it.

"The flood gates will open when you see the likes of Oprah promoting it on TV"

You trippin?

Is Jimmy Fallon the likes of Oprah? At least he is on TV. *eyes roll*

at release it wont make much of an impact (if any at all). however if PS VR becomes a big hit it can help boost the sales of the PS4 quite a bit in the long run.

I think it has more of an appeal to people who already have a PS4. I doubt many will buy a PS4 just for Morpheus - there are many other VR options available and it's a technique which is hard to present to masses.

^^^

I've put 'little' because PSVR isn't something Sony expect to sell PS4s, it's a product they're selling to people already with PS4s.

Somewhere between "A little" and "A moderate impact".

Not every single person has to buy their own VR set. It's more like an extra experience, you don't need it all the time for every game. So you can share it, or buy it together. And you can always resell it if you are bored with. People will want to experience it tough, and so it's an extra reason to buy a PS4 even if it's just to try it out.

Not much.

As many have already said, it's a costly investment (350 $/€ + whatever PVR costs) and because of that the first that will jump to PVR will be the ones that already have a PS4.