My company uses a credit card terminal to process all electronic types--like most retailers. However, because of our OS, we went with a different type of terminal than you might find at most retailers like Walmart or Home Depot. So the process of verifying the purchase amount, swiping, and authorizing payment are a bit different too. The terminals display step-by-step directives so that the customer can know how to proceed. Instead of actually reading the directions many turn into Neanderthals--mashing in the keypad, tugging on the power cord in search of a stylus, swiping their card over and over and over, all while muttering the phrase "why can't they make these damn things all the same?!" or the occasional "they're all a little different". I think we all become Neanderthals when we are accustomed to something and then are introduced change. We like what we like--at least what we think we like. http://hubski.com/pub?id=18703 From a business standpoint, I know the perils of failing to make a product to fit the consumers needs. As a craftsman, I want to make something that I am proud of. I know that the right person will find my product as awesome as I do. However, I am not a craftsman by profession. Anything I make is part of a hobby. I don't rely on "customers" for payment. If I make something for someone it's usually as a gift. If they don't appreciate it they can go fuck themselves and I'll refrain from making anything else for them.