3DTV has one fundamental flaw: It doesn't add to the experience. You're still watching a movie. Basically, to translate it to VR, that would mean that you're still playing Civilization or Tabletop Simulator, but watch the game float in front of you instead of looking at it on a screen. If that was all VR is, yes, it would be doomed to fail. Because for that experience, the overhead is WAY too high. Setting up the whole equipment, in a room that's more or less dedicated to playing, wearing a VR helmet, all that just to get an experience that may be fun the first 3 times but loses its gimmicky charm soon, that won't fly.
VR is much, much more, though. Yes, there are games that are essentially banking on being gimmicky versions of normal games, but there are also experiences you cannot sensibly duplicate on old school gaming hardware. There is that lightsaber game, or a game where you climb up houses, games where being able to experience 360 degrees is vital to the whole game and so on.
New technologies in gaming have often been used wrongly. Why? Because all that was tried was to cram the same games into the new technology. Often with subpar results. Whether it was different input devices or some gimmicky toys (powerglove, anyone?), what most of them did, and what still a lot of VR game developers do, was to try to cram the old formula into the new technology. That can only fail. Because the formula has already been optimized to fit the technology that exists. You will not create the better RTS game in VR. At least not if you offer the same interface that is optimized for keyboard/mouse/screen gaming. If you can add the VR component, then we're talking. How about a "god-game" where your believers actually react to where you stand, towering over them? Or a strategic game where you actually ARE the general and your troops actually react to you being "there" with them?
VR games will, at least in my expectation, be less defined about how you play something different but way more about immersion than games were so far. To expand on the "general" example from above, contemporary games already allow you to play Napoleon, sit on your hill and send dispatch riders to your troops. VR will allow you to really experience this, with full 3D audio and the fully immersive experience of "being there". The quality of the experience would be a vastly different one. And this can actually be true for any kind of game, from sports to RTS to jumpscares, whatever your preferred genre, the experience will be vastly more immersive.
What will make or break VR, though, is whether we find new genres that only make sense on VR. Like I said earlier, there are a few experiences you cannot sensibly duplicate without VR. That would be basically all experiences where a full body simulation enhances the experience or even makes it possible in the first place altogether. The lightsaber game from earlier would be a good example. There isn't really a sensible way you can implement something like this with mouse/keyboard input or controller input. It just won't get the same feel to it.