I've been mildly curious about VR games for a while, but I'm also notoriously a late adopter. I have the PlayStation 4 VR headset, which I understand is fairly mediocre compared to what's out there (plus I only ever use it for Tetris like the autist I am). Now that my income is on the upswing, I might bite the bullet and get a decent setup to try HL:Alyx a try.
Or I might say I'll do it and then postpone it for years until the fad dies.
If you do get a decent headset go for the Valve Index. You'll get HL:Alyx free with it as well. I wish I'd waited for the Index to arrive but I couldn't help myself and got the Vive Pro Eye, no regrets though it's pretty good. I also have the PSVR (with a ps4 pro) to compare and the difference is pretty big. No light bleed from the vive, the screen is considerably less blurry and the tracking is just a ton better than the move controllers. Beatsaber has mods on pc as well (not going to lie that was the main reason for getting a pc headset). The valve mostly matches the Vive Pro but has some new features and wider FOV and a cheaper pricetag. psvr is the best low end introductory headset though (god forbid anyone uses their phones for VR then thinks thats how good it is).
I don't think VR is going anywhere any time soon, the tech is just getting better and better and the experience is more immersive than anything else already. It's a shame most games aren't really games though so much as short 'experiences'. Hopefully the big budget of HL:Alyx will change that, it looks pretty good.
EDIT: Also worth mentioning almost no games at all have the eye tracking functionality so unless you plan on messing with the dev side of things the vive pro eye is not worth it, the pro will do just fine.