The Dell was the only 5K IPS DCI-P3 monitor I could find. That's why. DCI-P3 was new to consumer space. 5K was new to consumer space. IPS further limited the the ability to find a comparable screen.

A lot of people, even in the HN/tech communities don't seem to understand that all monitors aren't created equally.

Yeah the point is Dell ain't the cheapest. Clearly it is the only one from what you have added. I was making the point that saying something is cheaper than Dell ain't saying much.