I think of the marketing as a bunch of nerds who want it to exist for niche reasons trying to find a way to appeal to normies because who is going to spend that much money to watch a dragon set fire to New York or have CGI bad guys lurking around corners only to pop out to be shot or going to comicon to have the amazing cosplays somehow enhanced even further with animation.
I feel like it's inherently a non-mass market device trying desperately for mass-market appeal because nerds can't afford $10k to stomp around the city as a giant mech in the hope they run into another one and have a duel.
But let's be more real. How cool would it be to look around and see other users with a tag cloud and you instantly know you can talk to that person about Star Wars or anime or football or dating? How much easier would it be to make small talk or even friends?
There's a lot of potential in such a device if it takes off. But I don't know if the devices are mature enough yet. And achieving mass-market appeal is a whole other hurdle and if it can't get past that the rest is moot.
Obviously I wouldn't want to see Apple be the only game in town. There has to be a minimum of two significant players to drive innovation, but someone has to create the market first. Apple might be able to do that.