Definately a no-no, but so is pull-tab gaming, poker machines that pay out in bars, and lots of other stuff so I'm not surprised.
Not the greatest mix of games, though the Guantlet Legends would be nice to have for cheap (though it won't go cheap) - hmmm, Primal Rage....
There is a Dig Dug and a few other interesting choices...
I actually may go to this seeing as its barely one hour south of Bloomington. I'd really be going for "Lots of spare game parts, Wiring harness, Buttons, Joysticks, Coin-machs