The Amiga had analog RGB output that was used by everyone because high resolution text (640x200) was unreadable with the composite output. Composite was okay for playing video games (inevitably 320x200), but few actually did that. One RGB monitor that worked (and much better than composite) was good enough.
That was in August 1985, about three years after the C-64. The Atari ST came out a few months earlier, and had excellent monitors, the problem was you really wanted two of them, one for high resolution (640x400), non-interlaced black and white, and the other for RGB low resolution (320x200) color. They were not compatible with each other.
In the PC world you started to see digital RGB EGA with 64 colors about this time, but until VGA monitors came out there wasn't really anything to compare to the Amiga / Atari ST in the color department. VGA was released in 1987, and of course took a few years to become common. An amazing number of PC video games were still CGA (four color low res digital RGB) at the time, but that of course all changed a few years later when VGA became standard.
The analog RGB signals from an Amiga are so standard that you can easily break them out and plug into almost any analog RGB monitor, including any decent VGA monitor with an off the shelf adapter. Composite support is an aberration and no one in their right mind would run an Amiga using composite only for any significant period of time, and it has always been that way. It was a waste of hardware, they should have left it out, almost no one ever used it.
Of course these days HDMI conversion is better, but that is also the case for nearly any video signal you want to display from more than a couple of decades ago.
I use composite on my A1200 because RGB -> anything means trouble with signals and latency. My GV-USB2 capture dongle has zero latency and I only play games.
That was in August 1985, about three years after the C-64. The Atari ST came out a few months earlier, and had excellent monitors, the problem was you really wanted two of them, one for high resolution (640x400), non-interlaced black and white, and the other for RGB low resolution (320x200) color. They were not compatible with each other.
In the PC world you started to see digital RGB EGA with 64 colors about this time, but until VGA monitors came out there wasn't really anything to compare to the Amiga / Atari ST in the color department. VGA was released in 1987, and of course took a few years to become common. An amazing number of PC video games were still CGA (four color low res digital RGB) at the time, but that of course all changed a few years later when VGA became standard.