Explain how this works when their phones only capture roughly 20% market share, and their computers only 10%. That is to say nothing of the demand for server memory.
It seems like they only represent a fraction of the demand side, but wield an outsized influence over supply?
In the commodity raw materials market, marginal price determination is highly volatile. Usually, even if total market supply exceeds demand by just 5% to 10%, prices crash dramatically. In the end, the 10–20% that Apple holds is the casting vote. Why do you think swing states are so important in elections?
For example, if iPhone unit share is 20% but it has double the RAM compared to cheap phones that's ~40% byte share.