Sony Interactive published a report today which outlines some milestones for its gaming hardware. The PS4 sold 106 million units to date. The Playstation VR or PSVR sold an estimated 5 million Units (sales figures estimated based on SIE research from 13 Oct 2016 to 31 Dec 2019). Aside from the Gear VR which came free with mobile phone contracts, the PSVR is the undisputed market leader at this stage. You can currently snag a PSVR Bundle (with games and camera) for around £199. Oculus and HTC are not forthcoming with their sales data.