I had a Gottlieb Touchdown--711 made.
I have an Atari Airborne avenger--350 made. I also have all the other atari pins, except for Time 2000. No published production numbers, however, Atarians is exceedingly rare from what I can tell.
Allied Leisure Super Picker--no production numbers. Likely only a sample run with only a handful, if that. I've only seen one mention of it on RGP. It looks like the only photos that exist online are the ones I supplied.
Lectronamo--almost 2500 produced, but they seem to be fairly uncommon. Game-specific parts are very difficult to find. The backglass is always flaking in some way.
I also have an unfinished/abandoned prototype game without any game code, unfortunately. I was going to adapt it to use a PROC or FAST boardset at some point and try my hand at bringing it to life that way (when I can find the time). I managed to collect the missing cabinet parts and get GI on, but that was about it so far. No idea if the game in its current state is actually worth anything to anyone since it's not playable.