PROs: Occulus (before FaceBook) solved 6 of the 8 issues of VR that made people get sick within a few minutes of use. That follows Moore’s Law, right? Miniaturization of components has also been proceeding at a nice pace.

CONs: What’s needed is content that inspires... a killer app. Like the PC became commonplace with spreadsheets, and the web was mostly inspired by porn (as far as video standards were concerned), and e-tail later. VR is simply an evolution of monitors & phones displays in that the 3D world is easily simulated enough by them. Games are not all that amazing in 3D over 2D. Even flight simulators are too hard to use to train real pilots. It’s also still way too hard to write apps and the differences between coding on various headsets is significant, still.

AR is actually fairly mainstream now, with GPS HUDs (Head Up Display) on car dashboards, Pokémon, apps like the iPhone Measure app that craftsman use to measure rooms, and real estate agents use to capture 3D room views to support potential sales. Note that AR should be thought of as including 3D scanning and printing, IMHO.