Apple thinks more about obsolescence than any of their competitors. Hell, they're already advertising $50 galaxy S3s. There isn't, and won't be, a used market for android devices. There isn't, and won't be, a market for used windows portable devices. There is, and will continue to be, a market for used IOS devices. That's because apple actively slows down the product life cycle. Changing the connector forced their hand, so they upgraded to match the specs of the new devices. Turns out they probably coulda waited, because windows 8 is terrible.