The audience is mentioned in article - it's dev kit for content creators. It's too bulky for general consumer market and there is not enough content yet. I suspect the current processing power will also be upgraded in final product for higher fidelity of 3D graphics.
So far the gaming industry was driver behind tech, but with augmented reality being so useful for industry (navigating warehouses, for example), this might change. The prices will drop, but I don't expect ML will be priced at <$1000 anytime soon.
Psychedelic application would be very interesting. Imagine experiencing something like Waking Life or Scanner Darkly wherever you look. A gimmick, but good demonstration of tech.