At the Las Vegas airport all the kiosk spaces in the middle of the halls are filled with slot machines. Lead to one of the most depressing things I've ever seen. While waiting for my flight. I look over and there's this young kid, maybe five years old, sitting at a slot machine. He didn't actually have any money in it, as you need a credit card to use them. But he was happily tapping away at all the buttons and gizmos, treating it no differently than some iPad game.