I don't see VR being more than a niche market in the near future, which means companies aren't going to invest heavily on developing games for it. There's not much reason for a company to spend a lot of money developing a game for a smaller market when you can develop something non-VR that's probably easier to develop and has a much larger potential sales base.
I personally think VR will be a niche market basically forever, unless they develop Star Trek style holodecks. There are too many people who can't use VR at all without getting sick, and even the ones who can often can't use it for more than an hour or two. On top of that, there are a lot of people who either don't want to be entirely cut off from their surroundings (I'm one of those -- I play a decent amount of video games but I do not like VR at all and that's one of the main reasons), or simply can't for various reasons, like having small kids.
It's just a much larger undertaking in various ways than sitting down to play a video game on your TV (or computer). That doesn't mean they won't keep developing games for it, but people have been saying it's just a year or two from become huge for years and years now. I think it will be a successful niche, but I don't see a path for it to actually become huge right now.
My 13 year old nephew has one and he enjoys it, but only for about 30 minutes at a time. Then he'd rather go play something on his Switch.
