For wide-spread issues at least, they do stand behind their machines.
Frequently because they're forced to, by the threat of litigation and/or a smackdown from consumer-protection organisations. There's too often a window where Apple won't acknowledge there's an issue but your warranty's expired so eh...maybe they'll make an exception for you? Or maybe not.
I'm looking for something a bit more systematic. On an iMac Pro that starts at a shade under £5000, it wouldn't hurt them to make the default warranty 3 years and offer an extension to 5 (I mean, who's throwing away these machines after 3 years, never mind one?).
> Contact Apple, an Apple Authorized Reseller, or an Authorized Carrier Partner to receive a quote for AppleCare for Enterprise.
Not so much. I guess what I'm really expecting is that for a workstation-class machine this is the rule rather than the exception.
Quick comparison, HP: 3 year Next Business Day onsite Warranty - they come to you, they make assertions about how quickly they'll be there. Can be extended to five years (for a Z840 for less than £200 or ~5% of the machine's purchase price)
Dell Precision: same. To add another 2 years to a Precision 7920 costs a bit over £200 or ~7%.
Apple: one year. £159 (~3% of base price) to extend to three years, and no option for more. You have to take it to an Apple Store (good luck with that), or Apple can arrange to have it shipped by courier. Hope whatever courier they use don't drop it along the way, and no sign of a guarantee when they'll get it fixed.
I expect the target market for the iMac Pro overlaps strongly with Apple's other machines (i.e. the iMac Pro's replacing an existing Apple computer) so this won't be a surprise but it's disappointing that Apple won't stand more behind their machines.