Originally this post was supposed to be about Microsoft HoloLens but I thought I'd take a step back and explain more on the differences between Virtual Reality and Augmented Reality.
Virtural Realty (VR) is a computer generated simulation of an environment. It's not a real place, yet with the use of a headset, you feel as though you are there, with a 360 degree view of everything and ability to interact with objects or scenes (though can be limited). You can manipulate the world around you.
Augmented Reality (AR) is a live view of a physical environment that has elements that are generated by a computer. For example, I was at the opening of the Globe Store in Greenbelt where you could set up AR viewing and when you opened your camera phone, you could look around the store but Star Wars characters would appear. Augmented reality is much closer to the real world, well, mostly because it incorporates the actual real world in it. Common usages right now are during sports games, in video games, etc.
What's Better? / More Promising? / Really the Future?
It depends. It's too early to tell, but from what I've seen via the HoloLens, AR will be more accepted and have more applicability and use cases in the more immediate future. VR, for the moment, is quite limited to gaming.
Military, Sports, Adult Industry, Retail, Gaming, Education, Medical, Real Estate/Infrastructure
VR & AR are for everyone.