Oculus headsets are for gaming, mostly. There's a rather humongous social and practical gap between wearing one of those in the privacy of your living room and casually wearing one outside in public. There never was such a massive gap for the iPad or whatever. Maybe if we were already used to the likes of Google glass, but we all know what happened to that one.
I'm honestly not laughing at zuck, at least not for this one. Besides not believing it's not gonna catch on, at least not this first generation, I'm actively hoping it doesn't. The world absolutely does not need people walking around in public with a dozen cameras attached to their faces, with LCD screens between their eyes and mine at all times. I wouldn't be comfortable with that shit and I don't want to get comfortable with it either.