That's the thing though, isn't it. It's going to take some time before devs starts releasing some groundbreaking and "proper VR games" for VR headset. The reason why the VR library is filled with these novelty gimmicks is because everyone is clambering all over new technology. It's like picking up a new toy, you'd want to experiment with it first, you're not going to be creating masterpieces with new tech right off the bat.