[saltyoldman]

Simplistically this is likely very true, if they have only 10m customers, that's like 12 billion a year. They can easily launch 12 times a year with 60 per launch, that's 720 replacements a year. Each launch is about 15m, so just replacing them each month they are spending 15m out of the 1b profit. Not bad.

And that's if they only have 10m customers - which I suspect is a lot more considering it's a worldwide service.