Hi Guys I have been operating machines in Australia for 20 years. I have run pins as well as everything else out there. Pins are making a good dollar but you have to be not be scared to charge for play. $2 per game is where we are now. If someone wants to play a commercial grade pinball machine that is well presented then they must be willing to pay for it. 4 balls a game at $2 with no special and high replay value. Even the older pins that are in good working order command $2 per play. Granted we have $1 and $2 coins here but you need to fit note acceptors to any machine on site and shouldn't be a problem. Swap em over every 6 months. If you shop your games out well enough then you shouldn't get the service calls on em. If they do get really dirty and broken it means your making money. I find now that people in locations take notice of machines when they are Pimped out compared to just Stock. I don't find that they get damaged at all. We do more damage by moving them in and out of locations than the customer ever does.