I buy clothes that follow fashion trends because when I go to the store there is often literally nothing else to buy, even if I don't particularly like it. I know a lot of people who behave similarly. Yes, I'm choosing to prioritize effort over preference here---the clothes might not be what I want but they're not actually bad enough to make me go to the effort to find better.

Similarly, I will likely buy the new MacBook Pro despite some elements being unnecessary or suboptimal. The laptop is important enough to me that if the keyboard were actually bad enough to outweigh the other benefits I might be incentivized to go to eBay to buy a used one. But realistically, I'll probably survive just fine with the new keyboard. It just makes the experience less "magical" than it could be. And I suspect a lot of people are in the same boat.