> It's a steep price for a niche with not a lot of games.

There are a lot of good games and unique experiences (Lone Echo). A lot of these games also get you moving i.e. you won't need to do cardio exercise if you play games. Many of these games aren't even considered fitness games

Batman

Beat Saber

Mother Gunship

Superhot

Pistol Whip

Gasland

Thrill of the Fight

Underdogs

Synth Riders

Guerilla Tag

Blade and Sorcery

Gorn

Les Mills Body Combat

FitXR

Creed

If you get a slip rig, just walking around Fallout VR or Skyrim VR will give you a lot of cardio while essentially enjoying a more immersive game than the flat screen version.

Name a popular flat screen game and there is likely a decent VR version. There are lots of good racing games and FPS's

Zero Caliber

Arizona Sunshine

Walking Dead Saints and Sinners

Bonelab

Pavlov

Breachers

Contractors

Into the Radius

Tactical Assault

It's also worth for having your own private movie theater. YouTube VR is great

There's a lot missing of games missing from my comment, and I didn't even touch on VR mods for games like Cyberpunk or even Zelda BOW

What your comment tells me is that you didn't really use VR for more than a few days.