Edit: if this is about a VR headset the I can understand the other side though I’m skeptical Apple will ever ship a VR headset. Aren’t VR headsets mostly for gaming? What are the other use cases?
VR is a workspace - Let me give you an example I've actually used. I built a sculpture that was installed on stage at a theatre - it was ~7m tall, and effectively a giant marionette puppet, in that it was suspended from a truss that was hauled up into the theatre rigging.
It was bumped into the space a couple of days before the play started, and had no opportunity to be fully assembled prior to bump-in. It was a complex 3 dimensional object, which had to be designed in full stereoscopic 3d, because the eyelines are critical when working on something at a specific scale.
So I was able to use tilt Brush, a 3D VR painting environment, to model the work in 3 dimensions at full scale, walk around it, look up through it etc - literally the sort of creative process that you can't do on a flat screen.
I've also worked in a VR version of SketchUP (architectural drafting), where you do all your modelling in the world around you. There really isn't any way to substitute the qualitative difference of the working experience in a VR workspace. What a number of apps do, is literally give you a giant empty post-industrial warehouse space as the working environment.
Check out this demo of Tvori:
What's important about this is the way you do the work - it's working with your hands in a traditional artisan sense. So much of any 3 dimensional workflow is spent on trying to kludge around the fact you're looking at a 2D screen - manipulating your viewport. In VR, you can just move your head.
It's something you really need to try yourself (
if you do the sort of thing that it's amenable to) to appreciate.