I've been lucky over the last 12 months to see and play some awesome collections Bally Williams Sterns it's amazing how many games are out there in people's houses :) plus there's alot of guys not on any forums so there must 1000's of games in personal collections. I've also seen Dans setup man it's incredible an absolute museum of coin op games. Zaccaria can't say I've ever seen one in the flesh let alone played one., from what I've read they where unreliable and hard to repair am I right?

Zaccaria's are only "difficult" to repair due to the fact there are not replacement boards (other than Homepin's MPU board). So for board jockey repairs - it is difficult. As long as you have schematics and are resourceful with parts, they are reliable, easy to repair and maintain. I've repaired a few dead games in the last two years - they are basic machines as long as you don't need to go too deep in their schematics as they are often wrong !