Virtual reality is steadily becoming more popular, but it’s still several years away from mainstream adoption, a new report says

According Greenlight VR and Road to VR’s 2016 Virtual Reality Industry Report, consumers will own 2 million (non-Google Cardboard) virtual reality headsets by the end of 2016. But despite that growth, the report says that virtual reality is still 6 to 8 years away from “hypergrowth” and mainstream adoption. The report says that a “killer consumer app” is needed to accelerate the growth of VR, and that app could likely come in the form of a social network.

+ Earlier: The Oculus Rift started shipping late last month, but the price point and computing power needed will limit its adoption