Sologram
They are entirely different.
Hololens is an entirely new beast.
Comparing them because both can play youtube is every journalist's mistake and uneducated journalists created that mistake.
Hololens can not be used outside in a bright day light.
Hololens can be used any where. WiFI is not needed all time for Hololens. WiFi is needed only for the APPs which needs them as in some APPs in phones. You can connect the Hololens to wifi(hotspot) in any smartphone.
Innovators - Sharp,Imagine tools, Tools used innovatively and think out of box, not afraid of being called as 1 with crazy ideas and innovative.
Rony Abovitz must be a great salesman.
Where did you see the "rigged demos"? It works as shown in the demos if you even understand what it can do and do not. Your 20 minutes on hand demo never shows/teaches you any thing.
Comparing AR device with VR device itself is not correct. Every one in VR world knows HTC Vive has far superior experience than Rift.