As a collector operator, PLEASE TELL ME of any problem you experience. No matter how small, I like to know when things go woring so I can address them.
I don't do it for the $$$, because if I did it woudl be stupid. I do it for the love of pinball and there is nothing better than the smiling faces and new people I meet from doing it. On the rare ocassion when I walk in and see a family or a group of buddies playing on 4 perfect playing machines (that they personally can not do anywhere else in the immediate area) it is all the payment required to keep going with this silly experiement.
Tell your operators when you notice issues and if they blow you off then THEY are the one with the issue.