Comment by toast0

Sure, but Macs are around 10% of general desktop computing. To a first approximation, they don't count. User communities vary widely. If you target macs, then a high DPI screen is a must for testing. Otherwise, I dunno; ~ 100 DPI screens are way less expensive than ~ 200 DPI screens, so I'd expect that installed base is significantly higher for standard DPI. But there's probably enough high DPI users that it's worth giving it a look.

To address a question elsewhere, personally, I don't see the benefit to pushing 4x the pixels when ~ 100 DPI works fine for me. My eyes aren't what they were 20 years ago, and it's just extra expense at every level.