Consumer-level VR started with gaming. Video gamers are already accustomed to being engaged in highly interactive hyper-realistic 3D environments. VR just ups the ante.
Gamers are early adopters of high-end graphics technology. Mass production of gaming consoles and PC-based components in the tens of millions and competition between vendors leads to lower prices and higher performance. Game developers follow suit, often pushing the state of the art, squeezing every ounce of performance out of hardware and software. Gamers are a very demanding bunch, and the market has consistently stepped up to keep them satisfied. It's no surprise that many, if not most, of the current wave of VR hardware and software companies are first targeting the video gaming industry. A majority of the VR apps on the Oculus Store, such as Rift (https://www.oculus.com/experiences/rift/), GearVR (https://www.oculus.com/experiences/gear-vr/), and Google Play for Daydream...