AR you are meant to walk around, the tech comes from the wearable computing industry and its primary usecase has been industry and manufacturing with a secondary usecase for design. One of the key parts of augmenting reality is the ability to interact with that reality. Those soft bumpers that let it become so dark and VR like will kill your vision making it not possible to safely walk very far in them (stay in your home!)

For VR, one of the BIG use cases everyone harps about is telepresence. this won't work as they hope as AR systems have sensors mounted on your head, the sensors can only see some of your body and wont be able to track your movements in detail. This will become a bigger issue with VR games where if they require good motion detection you are back to spending an extra 1k USD one motion sensors to place around your room.

functionally the use cases for AR im seeing advertised are novelty at best, Im not seeing a use case to keep googles on my head so i can have 4x 720-11080p windows floating in front of me when I can, for the same price, have 4x 4k monitors. Im sure they will develop software more suited to the use, though the AR applications are going to be limited in scope due to being stuck in movement.

finally size is still a problem, both the hololense and the avp are large, heavy and cumbersome, even with the newer sleek desgins. This is a market segment waiting to get trashed by simple projectors and the same motion sensors used for VR. Kinects problem was cost and usability, motion detection was actually fixed prior to the producing going under and laser projection tooling just gets more impressive every year.

I don't expect giant goggles to become vogue.