that was the monitor.
It's an LCD and it also probably cost a stuff ton since it was used for mostly medical applications or sciencey stuff. Those were way ahead of the curve on technology but now that 4k is becoming common place the next few years are gonna be great for monitors.
my current secondary monitor (made in 1999) is 20", supports 1600x1200 resolution, and can go up to 85Hz refresh rate. the only thing i disliked about it was that it was a little too dark for my liking and i couldn't find a way to fix that without messing up the colors.
And none of those are really that impressive and haven't been for a while. Also a 4x3 ratio is just awful. I guess for 1999 those were pretty far ahead, but I'm pretty sure LCDs made it up to those resolutions pretty quickly. I also really don't get the whole deal about refresh rates being so important, especially if your game isn't running at those frames