> Only a tiny percentage of laptops are ever upgraded.

Probably yes and that is also probably because behaviors like this. Manufacturers have trained consumers for years that upgrading of fixing stuff is not worth it. Personally, I have upgraded every laptop I have ever owned. This isn't possible with todays Macbooks.

> Also Apple devices on average have much longer service lives than devices from most other manufacturers

Bullshit, if anything I believe the opposite is true. What is your source for this?