I suppose the intent in providing contact lens vending machines is "to provide a convenience" for those who just happened to forget to bring along or pack their lenses and naturally to make a huge profit! I wonder what they do charge for a pack of lenses and are they credit card only payments? Maybe the assumption is that no body other than a person who already wears lenses would buy them from an airport vending machine and surely they would only purchase the brand they are used to wearing. Of course what is assumed isn't always what is practised and I did notice the one box on the vending machine was for freshlook colored contact lenses so one who wants to alter their appearance has an opportunity to do so! Maybe there are stores at the airport where one can purchase a wig too! I found the colored lenses aren't that dramatic a change!