Why? If you’re spending 2000 hours a year servicing your current customers, surely it’s worth 20 hours to add on 1%, even ignoring that that 1% is probably more valuable than your average customer, and the halo effect of giving a good experience to existing users migrating devices.
Although maybe they should because someone willing to buy a $2000 phone on launch is probably more willing to buy a lot more things versus someone who keeps phones a long time.
