> All tech ever made in the entire history of tech, as far as I can tell. I suspect 50x in 3 years would be exceedingly rare to see outside of products that li

> All tech ever made in the entire history of tech, as far as I can tell. I suspect 50x in 3 years would be exceedingly rare to see outside of products that literally expire or break in 3 years or are part of some ecosystem that has essentially died. Apple's trade-ins for iPhones, for instance, are much more generous than that. I suspect the issue here is simply that Apple doesn't want to be in the business of selling used desktop computers, but they do want to be in the business of selling used smartphones.