I think the biggest selection problem is the Minority Report UI problem: hanging hands are not precise tools, nor are they comfortable to hold up for > ~a minute.

Right. The Autodesk people figured that out by 1990. It's like trying to draw while wearing mittens. And they had fingered gloves as input devices. During the 1990s, there were many attempts at tactile interfaces. None of them ever caught on. My favorite was the levitated metal ball. It rested over a shallow bowl, and offered all 6 degrees of freedom, plus it could resist your movement and push back.

VR is good for looking at 3D models, but not for working on them.