What's the state of play with other VR systems? Does Occulus have better hardware than competitors? (Edit: a quick Google search tells me the Occulus systems are stand-alone and work well, the HTC systems are tethered and the Valve system looks to be the mutt's nuts but is very pricey. )
Last I looked, VR looked to be slowly growing (hampered by the cost of the GPUs required to use it satisfactorily), with only a few gamers dipping their toes in the water... haven't heard much about the PlayStation VR kit for a while either, amongst the news of the latest generation consoles.