A broken patent system is a scary thought, but the court system is also very broken when it comes to patents. There should be special patent courts, so you don't have to go through an expensive and lengthy legal trial. Special patent courts exist in Germany I believe.
Every technology that someone conceives of today is probably patented already. It discourages new enterprises and there are many cases were entrepreneurs are simply knocked down by patent trolls via extortion or lawsuits. They sit on their patents, doing nothing with it except suing anyone who has somewhat similar vague idea.
I hope OculusVR does not have problems with patent trolls, that would be horrendous, but it is no unimaginable, since VR is a concept that has existed for a long time and in all likelihood there are many patents out there on that. Most likely the trolls are waiting for their success, then they come knocking alleging infringement and wanting a big sum of money as compensation.