Thanks guys. Pinsanity that ebay sale is interesting, thanks - I can't see when it was but if that machine was all working & as good as the photos then I reckon that was a pretty good buy - great to know these come up occasionally for this money.
Thanks too cowcorner - I've played a few games on Congo & like the artwork - but given yr assessment I'm crossing it off my list. Sounds a bit easy.
And have you guys seen the "collector's quality" MM on ebay? I think they are asking $16k (dealer).