I actually think AR could still be the next big thing, once the integration becomes seamless and the peripheral technology doesn't look ridiculous
The notion of having a HUD for my eyes everywhere I go sounds neat at first, until I think about it a bit more and it just seems like sensory overload. I can always just pull out my phone if there's something I want to know, and that thing is already pretty invasive when it comes to my daily living - do I really need something more than that?
When it happens, we'll know. The iPhone was famously expected to be such a failure that Verizon refused to be a carrier. Microsoft also joked about Apple being able to make a smart phone. Blackberry felt the same way. The only company that took them seriously was Google with Android.
Out of curiosity, what is it you think AR will revolutionize? What do you consider the killer app?
AR has a clear advantage over VR here as you wouldn't be blind to your real surroundings so you'd still be able to talk with the people in real life too (and not look like a doofus who walks into walls)