The problems you have selling sugar water are not the same problems that Apple has today (or since Cook moved into the post).
I think apple is now heavily navel-gazing. Their products point inwards into their ecosystem, they don't interoperate, the customer is trapped, they have few choices. maybe I should say egosystem?
I would have agreed with this before the M1 Macbooks came out, but when it did it caused a big change in my opinion.
When that happened, basically the mac was a better pc, since you could run windows natively on your mac. The mac now shared hardware and software with the pc industry, and innovations transferred over, like graphics cards. Apple let its customers benefit from multiple ecosystems, and they have more choices.
The apple switch to arm, went the other way. how many PCIe cards from a pc work in a "mac pro"?