[ddingus]

Apple supported other transitions nicely, and for a reasonable time. That prior history was reasonable.

They have little to gain by not doing exactly that again.

[rasz]

Last time it was 3 years to obsolescence at a time CPUs sped up by a factor of 2. This time you will be switching to slower CPUs and maybe reaching 1.5x in 3 years.

[ddingus]

The difference being plenty of Intel options available.