You cannot replace the revenue of a once every two years $800 purchase with some music sales. Consummers only even spend that $800 because the cost is hidden in a larger monthly bill.
This should be a big deal. Apple is no longer taking market share from Android. Apple is no longer convincing consumers to replace their old iPhones. This is a trend which should scare investors. Let Apple is still priced assuming 11 more years of current profits.