Mine would be my Dell UltraSharp U2410 monitor which, checking the little pull out tab thing, has a manufacture date of August 2009 and is revision A00. Anyone familiar with this monitor may recall the original revisions had some flaws.
One of them is that most preset modes lean Pink-ish in hue. The Adobe RGB, sRGB, and custom modes are unaffected by it. I remember this being a common complaint with this Dell monitor (and maybe others that used the same LG IPS panel?) around that time.
Adobe RGB and custom result in wide gamut, and when you don't need it (I don't), that can come with its own headaches, but they have no inherent issues other than the color being "wrong".
sRGB seems to be the solution, then? It would be, but unfortunately sRGB mode had its own flaw in this revision where darker color tones were dithered, and that kills it for me. Later revisions supposedly fixed this. So I'm forced to use Adobe RGB or custom.
These were high quality IPS panels for the times, although the overly aggressive matte AG coating took a while to get used to (I wish it were there, mind you, because glossy displays bother me more, but I wish it were less). It's also only 60 Hz, but that aside, it's still nice enough. Funny thing is I don't care about being limited to 60 Hz in games. I just want the higher refresh for the desktop environment.
I'm going to miss 16:10 when I have to replace it. I wish Dell kept the 1600p 27" panel from last year around (but if I went with that, it would still limit me to 60 Hz).
No idea how it's still bright enough since that's supposed to be of the big aging results of these older CCFL backlit displays. I can't have it over 50% or it seems too bright unless a lot of ambient light from a sunny day is flooding the room. It's seen heavy use throughout its ~15 years but it seems bright enough.
It has its quirks, and flaws even, but if it's lasted this long as my daily use display, I guess that says something? Whether that something is "it's pretty good" or "I'm a sadist and tolerate a lot" is up to you. Given the state of my keyboard and speakers (both around 9 to 13 years old themselves), perhaps more of the latter than I want to admit. But both of them are Logitech and for whatever reason, I have had awful and consistent results with their stuff not lasting. Their support is the only reason I consider them at all anymore. I'm slightly concerned about the day I'll have to replace the display in particular. I know displays have gotten better but I'm quite picky about some things and finding the perfect one always seems to be a chore.
