The purchase of Oculus Rift did not arrouse my curiosity, but when Dave Pell of NextDraft pointed to a story by Lev Grossman... I figured out why Zuckerberg got so excited. And I must admit, it's pretty exciting! Any technology that helps people do things, as opposed to doing things to them--that's worth understanding.
Time.com: The Virtual Genius of Oculus Rift, 2014-Mar-26 by Lev Grossman
Iribe says “It’s kind of like the beginning of film. It’s going to take this whole new set of mechanics and engineering to master it. We have no idea what really works in VR. People ask us, What’s the holy-grail app going to be? I have no idea! Don’t know.” The uncertainty doesn’t bother him....
“I think people have always wanted to experience the impossible,” Luckey says. “That’s one of the reasons games have caught on. They want to actually do things themselves, have a say in how that world works, instead of just watching someone else do it.”