An excellent and impressive standard of workmanship, as ever.
This struck a resonance with me(pun slightly intended) with the Audiophool thread. Many years ago someone was trying to sell wooden knobs with amazing sonic properties. They were ridiculed for charging $485 for each one. But looking at David's description of the work involved and considering overheads and profit margins etc., maybe that isn't an excessive sum.
I can't find a web link to the original part, but here's a contemporary comment:
http://bobbyowsinski.blogspot.co.uk/...#axzz4vZNXwuMv
I note this is a thread about wooden knobs, not about audiophoolery.