I'd wager my entire lifesavings that the stickiest, highest DAU/MAU app for vr - SO FAR - is porn like the SLR app. Somewhere in Oculus there's a dashboard showing user retention rates by most commonly used app and SLR or Honey Select or whatever else is at the top. But they can't say that at a press conference.

Nobody wants to be the one to tell their buddy "hey check out this porn on my VR headset" so it's not growing as fast as it could via word of mouth. But it's a very very big step up in terms of UX.

Would someone pay $300-400 for a better porn experience? Probably not.

But if we're talking about "of the people who already own a VR HMD and still use it often rather than letting it collect dust, what do they actually use it for?"

The answer is porn.