Hi OP and fellow enthusiast,
Hope you are well. There are a couple things to point out in reference to your main thesis or major premise:
-The examples are larger sums for a specific class (Juyo) and therefore cannot be used in a ‘most’ argument to provide overall direction of a market.
Separately, how many people can spend $5K or $10K on art let alone six figures for one example?
-As Hoshi (I believe mentioned) about knowledge…Brother, people are not going to give up their competitive advantage (knowledge) that cost them time and money so ‘we’ can quickly Google search or AI gobbles it up.
This is one of the reasons why it is such a service to our shared hobby when someone is kind enough to write articles, et cetera or even provide books for sale.
……Let us borrow a thought experiment from Charlie Munger and inverse:
+How would we NOT be a successful dealer? No established clientele, nearing six-figure pieces, limited opportunity to sell via auction house.
+How could we BE successful as a dealer? Tsuba under $2,500.00 USD, nihonto under $25,000.00 with most in the $5K -$15K range. Fittings at $2,000.00 or below.