It really isn’t, you’re probably just not aware of all the “proper” games that are out there for VR. Browse the Steam store and look at all the VR games sometime.

I have about 40 VR games in my Steam library, for example. I admit I haven’t played them all yet but I’ve played a lot of them and most of them are great. There are tons more that I could buy if I had the time to play all that shit.