(from the founder of oculus, Palmer Luckey)
We have not gotten into all the details yet, but a lot of the news is coming. The key points:
1) We can make custom hardware, not rely on the scraps of the mobile phone industry. That is insanely expensive, think hundreds of millions of dollars. More news soon.
2) We can afford to hire everyone we need, the best people that fit into our culture of excellence in all aspects.
3) We can make huge investments in content. More news soon.
We promise we won't change. If anything, our hardware and software will get even more open, and Facebook is onboard with that.
http://www.reddit.com/r/oculus/comments/21cy9n/the_future_of_vr/cgby5hj
So it truly did come down to getting more money for development.