Ok, by buddy Phil and I picked these up at a garage sale on saturday, unfortunately it wasn't a $50 each sort of thing, but we did pick up some A list stuff at prices that were at least acceptable ($1000 total). Not bad considering the people started off with a firm $799 per game.
We got a Ms Pac-Man cabaret. The board is the original Midway board but it has a "Ms Super Pac-Man" kit installed on it, which as far as I can tell does nothing but speed up Ms Pac, change the title screen and eliminate the ribbon cable/daughtercard.
We got a Centipede cabaret. Serials match on everything in this one. It had a few initial issues but I took care of them really quick (both mechs jammed, and whoever replaced the original trackball with a happ's one had the wiring wrong).
The Pole Position cockpit supposedly had a "bad monitor fuse" but it turned on for me and the screen came up, so I turned it off immediately and grabbed it. It is playing good, but it has a few graphical quirks, probably because the voltages aren't right. I need to do the regular pole position mods to this soon, chances are that will take care of the quirks (only getting 4.78 volts to the board).
We left behind a dedicated Frogger with no sideart and a very clean 25" Golden Tee 99' (with 2002 artwork) in an unknown cabinet. They were nice games but they weren't worth trying to pry out of the people's hands with their inflated sense of value about the things.