Anyone who knows me knows that I am a big fan of using science, technology, and analysis to drive continuous improvement and efficiency. I can't help but calculate the time, cost, and relative value of different approaches. For example, "What if we switched to using just one kind of LED light bulb throughout the house and ordered dozens at once when they are on sale? Does that make it easier to replace them? Is the NPV of investing the capital in surplus discounted light bulb stocks now greater than the future cost and effort of making subsequent acquisitions?" This is a real thought process that I have had, debated, and defended recently. Aren't I fun to live with?
I also value self-reliance and simplicity and the ability to take apart mechanical things and repair them. In the last week I've disassembled and fixed our leaking Subzero refrigerator (blocked drain on the condenser drip pan) and our also leaking Frigidaire clothes washing machine (loose connection on the internal filler hose). I love my 40+ year old pickup truck and my 50+ year old Mustang all the more for their repairability. In general, parts are accessible, understandable, and often easily cajoled back into operation (like the corroded connection that occasionally reduces the alternator's ability to charge things). Bonus: Should I need them, replacement parts are often 10x cheaper than their modern equivalents, like $27 for a refurbished alternator for my old Mustang, versus $270 for the one on a modern BMW. Kids love to ride in the old vehicles, too. "Wow, look I can turn this crank to raise and lower the windows, so cool!" To me, the understandability is a key part of the pleasure. With little effort you can see what each thing is doing and infer how it is doing it. My friends and I may not be able to design a carburetor, but we can take one apart and rebuild it.