VR, at least as it stands right now, is squarely in the domain of the enthusiast, which has a very broad overlap with PC gaming crowd. Something like the Oculus Rift has no real potential with mobile gaming (power requirements alone preclude that).

What sorts of applications can you imagine? The idea of virtual presence being a killer app is silly, IMO - I've played with both the Oculus Rift and telepresence robots - they're neat, but for meetings/gatherings, I'll take a plain old webcam any day. I can't imagine what Facebook would do with this that I would be interested in.

True. But the best strategy for widespread adoption is to get the hardcore enthusiasts first, who in this case are the PC gamers.

For example, see how well that's worked out for Tesla.

Isn't that what they exactly did? They got all the PC gamers on fire, got Carmac, got bought by facebook. Now they're reaching for the moon, they became so big that people started hating, you can't avoid that.

Literally no one is hating them for getting big, everyone hates Facebook and doesn't want Oculus (which makes awesome technology) ruined by them.

I don't think people are upset because they "got big", but because they were acquired by a corporation that signals a core shift in their ideals. If they were bought by Valve, or even Microsoft, I don't think there'd be nearly as much backlash -- because it's not that they're BIG, it's that Valve and Microsoft would not be pushing for a different market with their product (not to say they wouldn't later).