I wish we had SCART connectors here. They make turning a TV into an arcade monitor pretty easy. I can see how everything else about it sucks though. Still, it would have been nice to have RGB back in the old days.
Yeah, they are ok for getting RGB into the tv for arcade use.
I have several tvs here with scart, and the quality via RGB for tv use is just crap - 2 sat recievers with scart out, and RGB mode is unwatchable to me, and most of the picture controls are disabled in RGB mode so there is no way to turn the saturation down to something watchable.
For the xbox and the arcade side of things they are great, but RGB on something used as a TV to me is useless - component is much better in that all the image controls on the TV still work, and the images look more realistic then the RGB input. Even watching video on the xbox looks horrid on RGB scart, composite is much nicer to watch for dvd's etc.
The RGB input was made initially to be an overlay that would allow a decoder to use the video out of a display to get sync and pull the blanking line when it wanted to place its graphics over the tv image, things like external caption decoders, teletext boxes, and those crazy dialup terminal things that were all the rage in the early 80's that never got anywhere. I think thats where some of the issues come from is that the tv is trying to make the RGB transparent to the underlying composite image rather then giving it a direct drive, and also that the RGB values in an image are nothing to do with what a tube needs to be driven with and last I checked the sat recievers and xboxes had no concept of colourspace conversion to go from sRGB or whatever is being used to the colourspace that the CRT tube uses.
And the connector - well whoever made that probably also had a hand in making the horrid HDMI plugs as well.