Demos and stuff are still really limited, I think when more people are exposed to good, high-end VR it'll grow exponentially. There are already tons of great VR games and VR is really hitting its stride recently in software and hardware. DOOM(4) VR, Fallout 4 VR, the Pimax 8K HMD, and Skyrim VR are all on the horizon. Superhot VR, Rez Infinite, Thumper, Redout, Everspace, House of the Dying Sun, Arizona Sunshine, Space Pirate Trainer, Raw Data, NewRetroArcade, and Windlands are all must-buys for VR IMO.
Too few people realize it, but every genre is represented in VR already. Including RTS, RPG, sports, everything. I'm up to 85 games on Steam for Vive.