People also forget that "retina" is largely a marketing term. I could care less about whether my eyes can discern a pixel at a certain distance. What I do care about, as a photographer, is having the most dense sharpest pixels possible so that my on screen image will closer resemble a very high DPI print. The more dense the screen pixels, the easier it is to tell if focus really is tack sharp. I can also fit more of my photo on the screen at a time at it's native resolution. And yes, when editing and tweaking detail, I am usually under 12 inches from the screen so I need as much resolution and pixel density as possible. The 27 inch screen also makes it much easier to see detail at 217-220 PPI than a 15 inch Macbook at the same PPI.
So maybe standing 10 feet away the 1440p and the 2880p screens look the same but at a very close distance this is simply not true. There is a huge difference.
So maybe standing 10 feet away the 1440p and the 2880p screens look the same but at a very close distance this is simply not true. There is a huge difference.