I never hear or see anybody mention this, but I feel that it is important to note that the actual surface area of the HoloLens is currently way to small to give anything resembling the presented experiences.

They always show the hololens used from a third perspective. Filmed with a camera, not the actual Hololens capture.

The hololens that I got to use (admittedly, almost a year ago now) was just nowhere near the expierence of any of the demo's. It's just a tiny tiny augmented display, compared to the massiveness of the headset.

Let's say it's more toward Google Glass than towards Oculus rift.

I really believe in this (type of) product, I have clients in certain fields where augmentation is just a obvious next step, but it is not going to be what they currently display.

And they know it, because there isn't a single image on the internet where you see what the Hololens user is actually seeing. Though I'm sure I'll be proven wrong at that in the comments below.

[Edit] Yes, I see there is a small render of the Hololens in the bottomleft corner, but you really need to see it compared to your full field-of-vision to get how small it is.