The tech-sector is slowly growing into an oligopoly or at least that's my impression. I expect it to be diversified but deals like this leave me questioning and yes, they make me a bit sad. Perhaps the Oculus guys can use the resources Facebook will flow into them but...I have a bad feeling about this. Really.
The waves of patent and copyright attacks unleashed on Google are basically the giants who were born in the 70s and early 80s (Microsoft, Apple, and Oracle) trying their damndest to make sure no-one will ever grow in the shadows they cast.
Now there are quite a few big players. Google, Amazon, Apple, Facebook, Microsoft, etc.