144Hz refresh is rapidly growing more and more common as displays become easier to drive. I'm sure the market penetration isn't as high as 4K screens, but I'm confident in it being the 2nd most popular refresh rate after 60Hz. I really refuse to work on 60Hz at this point. I notice significantly more eyestrain on lower refresh rate displays. Switching form a 144Hz display to a 60Hz feels noticeably worse.