Why did Facebook buy Oculus Rift?

[The Tadpole]

Google was a search engine, now it's a social platform, it runs YouTube, created a free online Office equivalent, has it's own internet company based around fibre optics, regularly experiments with and builds automated vehicles, among many other things that it does.

Not to mention it's essentially documented the world with Google Street view.

My point is that companies can expand, and it's often the way to more revenue. Facebook's pretty much got the whole world now, there aren't many people with access to the internet that don't already have a Facebook account. If they want to keep growing as a company, they have to expand into other things. They, having at least a slight bit of intelligence, have recognised VR as the potential future of gaming, and have also recognised the amount of money that it could mean for them if they can pull it off.

Edit: Oh, and Google also makes and maintains their own OS (ChromeBook), as well as the Android OS for mobile devices.