Setting aside technicals issues as a huge caveat, the promise of AR is massive. I'm actually somewhat surprised that we're not seeing more AR focused media to prime people to the possibilities (but maybe we're just too early).
Probably too early although we've seen some attempts with AR apps on phones.
As you say, technical is a huge caveat. But it's pretty easy to see that IF we could have glasses that could overlay/enhance/record/etc. there are so many possibilities in a way there aren't with VR for example--for both consumer and commercial uses. By contrast, VR seems pretty limited; immersive gaming and virtual tourism just aren't that interesting for most people. And people don't want immersion in a lot of circumstances.
When you can envision a clear market based on "just" relatively straightforward (if significant) extrapolations of technology that seems something worth paying attention to.
Absolutely. I would absolutely love to work in the AR space at some point.
That said, I can just as easily identify any number of social/cognitive/cultural "diseases" or abuses of that world. Should the transition happen (and all signs point at the big players /trying/ to make it happen), we will have some gnarly traps to avoid - and I'm not very confident that we will do so with grace.