My question is how on Earth do they monitor who's paid, and who hasn't? A friend and myself rode from Mesa to Chase Field tonight timing it perfectly coming and going simply walking on showing no pass whatsoever regardless of the fact that we both purchased them! The Train was absolutely packed with people both coming and going which I feel is a good thing for the most part! The people with bikes take up a lot of space when they just stand in aisles with them, and don't hang up them up like they're supposed to! Seriously though, how many are riding for free, and how are they monitoring that??? I see it as a good mode of transportation for people that really need it, but a huge $$$$ loss for the city as whole with people just walking on! At least you have to always slide your pass when riding the bus! Am I missing something?