Quoted from bobbyt:I wonder if buying a pinball machine is much like buying a car, my grand pop always told me not to buy a car that was made on Monday or Friday , the workers are in a rush on Friday to get out of there and get to the bar , and they are hung over on Mondays
That's true. You also shouldn't buy a pinball machine made on Monday or Friday - doesn't matter if it's a Bally, Williams, Sega, DE....
I wouldn't think too much about the manufacturer. The common brands all have their good and bad pins (try which ones you like).