Consumers have very little choice. Especially with Apple, which releases whatever it wants and people buy it anyway. But with laptops and smartphones and other electronics, the "choice" often is that some phone operator or big electronics store chain randomly decides it's "Thin Device Era™" or something, and discounts a particular subset of devices. And people don't wait forever to buy a new device, they usually need one "right fucking now", so they choose from what's available.