I wanted BIG so I got a 40" Samsung (over-functional) "Smart" LED TV, and run it (thanks to SwitchResX) at its native 3840x2160, HiDPI scaled to 1080P. (My (la

I wanted BIG so I got a 40" Samsung (over-functional) "Smart" LED TV, and run it (thanks to SwitchResX) at its native 3840x2160, HiDPI scaled to 1080P. (My (late 2013 MBP 15" Retina) system won't drive it in native resolution at anything other than the scaled 1080P or the full 3840x2160, which is way too small.) 1920x1080 might not seem like enough logical real estate compared to the 5K monitors, but what I figured out is that, with Retina scaling operational, I can scale down the contents of various apps like browsers, text editors, terminals, etc., and get just the right font size for my tired old eyes at still very high DPI. Yes, the UI elements are pretty big, but they don't take up much real estate. And, yes, I'd rather that I have the OS give me the option of running at virtual resolutions other than 1920 or 3840 (there's something wrong with the drivers or the way the Samsung is talking to the OS--the latter thinks the native resolution is 7K somehow), but if you need BIG, this is a great solution.