Check out Voxon [1]. From the specs and youtube videos it seems like it's working on the same principle (rotating LED screen). Fun fact, it was co-founded by none other than Ken Silverman (the creator of Build engine) [2]. They've been pushing commercialization of this technology for years now.

[1] https://www.voxon.co/ [2] https://en.wikipedia.org/wiki/Ken_Silverman

Also check out the company named "Light Field Displays" for stunning displays. Not exactly the same as volumetric. Arguably better in some ways. Definitely more expensive though.

https://www.holoxica.com/light-field-displays

>drives up the resolution and price.

Uh, I get the former but why the latter?

Why would they?

I mean, I think it's SUPER cool and would not mind one sitting on my desk.

But from a product standpoint...? It doesn't scale well in size, resolution or refresh rate.

VR is pretty much better if you want a the kind of immersion I think you'd be looking for, and even selling that is hard.