After taking close looks between the 9100, 9200 ect here, Im a bit relieved. I was thinking that the picture would be closer to original arcade quality than svideo... and I simply didnt have the extra 200$ to find out...
Well, from looking at the pics, it looks like those monitors actually have Higher dot pitch than my panasonic 27".
Look closely at where the dirt and grass meets. On the svideo, its hard to pic out the pixel blocks, as they are blended in color very well. Yet on the 9100,9200s you can actually easily make out the rough pixel edges. There dosnt seem to be much color blending either.
The original arcades displays 'output' seemed to be higher in res than than what could actually be displayed correctly on the monitor... so a single lone pixel would only display half the color intensity, and have a strong color bleeded edge. But... if you put two or more pixels side by side... they are really bright and clear. Also, by staggering pixels, you can create advanced blending... and even transparent shadow like images (shown lightly right side of the spyhunter car... more heavily on some capcom games)
Anyway, while Im not saying svideo is the perfect answer... its the most affordable, and the best looking 'imop'... in regards to older authentic arcade
machines.
The only thing I think could top it would be Andys new card, with an older low dot pitch monitor... and Id still have to see it in action - close up spy hunter style

The biggest problem with svideo- is the loss of colors...blue & green, and when you increase them, the red is too strong and bleeds badly. There is a ballence though... so its not too bad (all colors a 'little' dull)... and with the new upcomming mame... they are adding RGB sliders so that you can adjust the color output. This should allow us to reduce the reds, so that when upping the tvs saturation, it will be in perfect ballence : )
In addition, Id like to say... that yeah... everyone is going to use these displays for different porposes. Some are playing more modern games, and want to keep the details high... but us old timers may be playing a blend of the old games, and arnt happy if they dont match how we saw them when we were young. (intended display look)
This again, is purely 'opinion', and no reason to argue.