Here is a better example of finding a customer need and satisfying it. One of the worst part of going to a live sporting event is that the lines to get food take longer than the time-outs. So if you want to eat, you either have to find someone hawking your favorite food row by row, or you have to miss some of the game.
Not anymore at Dolphin Stadium (and many others). Their new wireless Internet will include a system where you can order food and have it delivered to your seat. They have not set any delivery fee yet, but at the prices of stadium food, it can't be that much worse. This is a customer requirement that is worth some design effort !!
They are also adding a service to take pictures of the fans in their seats using the kinds of camera angles you see on TV. Is this a need too? I guess even if they get 1% of the fans, that is still thousands of sales a year. But I would rather bring my own camera.