That's the thing.
We spend a huge amount of time using computers. Considering not just the share of time but also the share of concentrated attention, they are an even more important object in our lives.
Why would you not desire the tool you use to be the absolute best you can have? And if eating cornflakes is important to you, the Laguioles may be worth it. After all, they will probably last ten years or twenty. Compared to many completely irrelevant, even burdensome objects we own, that's not that much.
Bruce Sterling once held a talk about minimalism and objects which stuck with me, long before Marie Condo commoditized the trend. He basically said: Spend a lot of money on things that you eat or put on your skin, on your bed, on your tools and beautiful objects. Get rid of the rest.
At the core, what I cherish about Apple objects is that they don't steal my attention and efforts for some inferior, fake promise. Looking at them and using them is the same, there is hardly any broken promise. It's that integrity which counts.