Perhaps that no one in your circles will use. To hundreds of millions of people around the world, Facebook is the internet. They are the target market.

Do the same hundreds of millions of people that still use Facebook have both the tech affinity and the spare bucks to shell out money for a Oculus headset?

Soon, it will become cheap.

To hundreds of millions of people around the world, a significant amount of leisure time and 449 euros is a pipe dream.