> I would rather have factory made versions since I know they are likely made precisely to a specification and deviations from that specification likely make th

> I would rather have factory made versions since I know they are likely made precisely to a specification and deviations from that specification likely make things worse, rather than better. For these items in particular, there is generally no extant factory automation that will get you a better result than a human craftsman. You'd be a fool to pick extant mass produced alternatives, all else being equal. A CPU is a pretty poor analogy here, since it's not only precision that makes handmade examples of the above items superior, but it's essentially the only thing that matters for a CPU (or something like an iPhone, etc). You likely could design a superior factory for many of those items, taking into account materials variance, bespoke details for individual customers, etc., but it would not be economical in the markets where these items are sold. edit: I also think these items are a bad analogy for medicine, where precision is paramount. So I probably agree with you there.