We're not talking about an annual refresh. We're talking about a lack of refresh over five years (in the case of the Mac Pro). There is absolutely no reason for Apple to have not updated the Mac Pro sometime within the past five years
Did you even read the response you quoted? I just offered my opinions as to why the Mac Pro hasn't been updated (the iMac Pro is the Mac Pro update for all intents and purposes, and Apple has little incentive in updating a product line which constitutes a net loss for them).
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You might want to revisit your definition of "most".Cook seems to forget that most iPhone users are also Mac users. Without the Mac there’s less incentive to buy an iPhone.
As a general estimate, out of every 10 iPhone customers, roughly 3 are also Mac users. And the majority of customers get an iPhone first, then decide what computer to buy. They don't buy a Mac first then decide to get an iPhone after the fact.
Maybe that was the case a decade ago (my first Apple product was a 2011 iMac), but I doubt that's the reality today.