This is exactly my thinking. Few people actually aim to play games at 600fps to shoot the other guy first, when you are actually better off spending your money upgrading your router and ISP and running at a mere 300fps in your 1080p shoot-em-up, in those scenarios, lower LAN/Internet latency is king.
For the rest of us, 4K gaming, or a high-res ultrawide setup is what people want to see tested, and they will be tested for sure. I can honestly wait a couple of days to find out real-world examples, not that I am about to upgrade my CPU anytime soon, first I need to upgrade my 4K monitor to one that does 120+ Hz and a GPU that can keep up, and I need to rob a bank to pay for it.