What? This right here is the exact future. What do you mean you can't see it taking off? Unlike virtual reality, augmented reality allows you to stay grounded in the real world. Hololens itself may not be the future with its limited FoV, and early troubles, but something else definitely will.
Imagine being at home but having your teacher pop up in front of your eyes and teach you with you just sitting on your sofa or taking notes. Learning about world War II? Here is a virtual map on your table showing where the allies landed, where the Nazi's moved troops etc.
Or being in front of the sink and having your dad or a plumber tell you exactly what to do? Your hololens projects the image of your sink to them and they just draw movements that show seamlessly in front of your eyes.
Imagine sitting at a cafe and having a conversation with your significant other at the same time and you're having your coffee, she's in front of you.
Obviously that's all theoretical, but this here has the capability to go far beyond gaming and it will, why? Because it just complements our already screen watching lifestyle. Google Glass, AR in the 3DS, these are all steps in part of the same way.
Virtual Reality is the final step, because it is totally immersive, otherwise Augmented Reality and wearables are going to completely be part of our life within the next decade or so.