VR has definitely been just around the corner for several decades now. Well, it really is here now and there are tons of games that support it, but it's still a niche, and it may remain that way forever, because there simply are some intrinsic problems with it:

You feel like you're really in that virtual world, in which you can look around and move around, but the moment you actually try to move around, you stumble over your own furniture that you can't see. It's either going to be a very thin illusion or you're going to need a ridiculously big and expensive setup. And the fact that you're blind to the world that your body is in, is always going to be awkward. It's a fun gimmick, but it's possible that it will always remain a gimmick.