Al, As someone who deals with card skimming as part of my job, I can tell you that servo attendants are one of the "weak links" we come across in terms of people obtaining (and then usually selling) card numbers.

BTW the profits are there. They might only get $1000 at a time, but they'll sit there at an ATM with a handful of fake cards and just go nuts. Because the banks are often only able to respond retroactively because by the time they realise a scam is running the money is gone. Which is why it _is_ profitable ):