I don't know if it applies in this case but it could be similar to high fps monitors. You don't really know what you are missing until you try it and go back to 60 fps.
First world problem:
- 4K 60Hz monitor with Freesync
- 1080Ti only supports Gsync
- Has to settle for Vsync
I agree that variable refresh rate (or just a few presets, like 60 fps) would be a good feature to have. The main problem in his case was that he basically claimed the product was doomed without it and just deflected anytime he was asked for sources.
Not sure if sarcasm
Anyway, better to know what you are talking about before potentially calling someone out on something. That would probably reduce a lot of the flaming on this forum.