I really like the whole "by hand" method of this.
One of my grandads was a pattern maker at a metal foundry, shaping the parts -out of wood!- to cast all kinds of things in metal.
Want to talk about careers that have gone by.
I used to enjoy watching him make some pretty detailed stuff in his home workshop, and the fretsaw hobby reminds me of those things.
I have fond memories of this type of work myself.
For me there is a zen aspect to tasks like these that can't be replicated with a lot of technology interjected.
The core of it is like any of the other stuff we do here really, yeah?
Get the right tools, learn the techniques to use them well and practice until you get what you like.
So while I understand the value and appreciation for "hand-made", I still find myself asking why, when amazing tools exist to produce the same results with hugely less effort.
Is it just something to pass the time?
Yep, it's a hobby. There is something very satisfying about turning something that's in your head into something real with your own hands vs just pressing a button. I went more than 40 years telling myself that I'm no good at doing something like "art" or woodworking, now that I actually tried doing some stuff I found out that it's not so hard after all, and it's fun. I'm catching up.
There also is a practical reason for doing things by hand: Money and space. I can't afford a laser cutter and I don't have the space for it anyway.