I Guess you're right, but I Don't see myself using sketchfab when this baby comes out. Sketchfab is awesome for simple/flat-shaded stuff, but PBR is a major thing nowadays.
While I am highly interested in this, the biggest hurdle to me is hosting. Marmoset viewer looks great but some of these files take quite some time to load. When you factor in 4 or 5 textures at 2048 and a heavy mesh you might be looking at 60+mb, right? And that's per view. That's pretty tight on bandwidth. Like I said, I…