Why do you people like this 3:2 screens? (I presume that I'm writing to an audience of programmers, mostly). Wider screens are perfect to work with to two files

Why do you people like this 3:2 screens? (I presume that I'm writing to an audience of programmers, mostly). Wider screens are perfect to work with to two files side by side. 16:10 is my perfect ratio, but I'm genuinely curious about your reasons.