For folks with the PSVR trial, between all the free demos on PSN, and titles with PS+ I count 51 games & things you should be able to try out right now! :-) :
Brand New PlayStation VR Demo Disc 2 13 Demo VR Games PSVR Sony PS4 4 | eBay
Amazon.com: PS4 Playstation VR Demo Disc 3.0 (Game Only) : Video Games
PlayStation VR's Demo Disc Kinda Sucks in Europe - Push Square
PlayStation VR Demo Disc (Game Only) - PlayStation Virtual Reality - Walmart.com
PlayStation VR Demo Disc #3 (VR Worlds/Battlezone/Headmaster) - YouTube
Brand New PlayStation VR Demo Disc 3 9 Demo VR Games in 1 PSVR Sony PS4 4 | eBay
All the Games on the PlayStation VR Demo Disc - YouTube