My father is a pilot. Not a commercial one, it's his hobby.
A fairly important bit of his plane broke and the mechanic made him buy a new one.
So he brought home the old, broken piece.
His impressions are: " *Grumble grumble* Can't see why the guy couldn't have just fixed it. I can see what he should have done there's a thing right here…" And so on.
My impressions were:
It's a thing of beauty this device. Close-up it resembles some sort of nefarious generator! But from the front it's just another ugly piece of machinery.
It was built at a time when brass and copper, tubes and gears were actually feasible, nay, required.
And the design never broke or became to expensive to produce, so it never got changed.