Look at the previous monitor deal ;)
Here is your cheapest 1440p, 144hz, 27", IPS gaming monitor. It only has 4ms response time, but then again, it is IPS. It is £160 more, and not worth the extra imo. https://www.box.co.uk/MG279Q-ASUS-MG279Q-27-WQHD-IPS-FreeSync-144Hz-_1756943.html?wgu=13045_206719_15334982559366_bc6d2b3838&wgexpiry=1541274255&source=webgains&siteid=206719
So what? How else are you going to get 1ms response time and 144Hz Freesync? Sounds an awful lot like complaining just for the sake of it... The one thing I wouldn't care that much about on a gaming monitor is the viewing angle.
TN enough said
The only people who claim 4K isn't a waste are those who actually bought into it. I get that more detail is better, but how about running everything at full with no slowdown at 144Hz before looking to a resolution that brings improvements we don't really need right now.