I have a Rift, and use it two to three times a week. I would use it more, but I have very little discretionary time.

I would say VR consumes about 50% to 75% of my free entertainment time.

If the resolution was a bit higher, I would probably do a few hours of work per day in VR as well. I find I'm fairly focused when working in VR as I have no environmental distractions yet can be in very peaceful surroundings (Mars, space, a balcony overlooking city lights, etc.).

I use an app called Big Screen to bring up my desktop in VR. Interestingly, it's multi-user so others could co-work in the same environment, look over my shoulder at my screen, talk, etc. even from across the world - if I had colleagues with an HMD and wanted to collaborate with them, of course (so much for the focus and serenity part of it!)

Do you have a fliphone? How often would you honestly say you check the weather with it?

Not really a counter-argument.

Flip-flops had tons of adoption (literally billions of people used them) when they were the state of the art.

Heh, flip-phones I meant... (although flip-flops also have a wide adoption)