I think it's more too stubborn to admit that he is wrong. Yes, the merits of 4k are debatable when you are talking TVs and TV viewing distances, but when it comes to monitors you are typically going to keep the monitor about the same distance from you. I'm not a fan of the curved screen TVs either, but again it's different for a monitor. We're talking about filling up more of your view for better immersion in games and more usable desktop space for productivity. The bigger size and higher resolution a 4K 36" monitor gives you exactly that, you would keep it about the same distance away as you would a 27" 1440p. The curved screen would ideally keep most of the display's surface about the same distance (and angle) from your eyes making the large size and resolution even more usable.