Cards have to be "re-charged" by someone with a card coder, which means more administration, on top of what the previous poster mentioned about the cost of the cards. Card systems need administration on a full-time basis, pure and simple. If you're talking about just running trap or skeet machines, a token system is a simpler and more clear-cut way to go. Put a token vending machine somewhere secure that only club members can access, say in a locked clubhouse or skeet/trap house, let them put cash into the vending machine for as many tokens as they need, and the machines only throw a predetermined number of targets per token, that's it. It keeps people honest and once the system is up and running, needs minimal maintenance. Most clubs that have installed these systems have recouped their investment in a year or so. You'll also find out, interestingly enough, that if you're switching over from an honor system to a pay-to-play system, the members who protest the loudest about it are usually the ones ripping off the club for targets.