tinkertrain
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Thought some might find this essay a good read: https://publicdomainreview.org/essay/primary-sources
I am not talking about someone else. If someone wants to buy and use that paint, more power to them.
I am just giving my two cents about my take of such a product., and if I would be prepared to dish out such cash for one tube of blue paint.
I read somewhere that is is unlikely to get much cheaper because of the high price of the ingredients, Yttrium, and Indium (don't remember which was the priciest).
I do admit it has very interesting properties, also the interesting fact that it's a new blue pigment, quite a rare occurrence.
Btw, I don't agree with your statement that you don't 'need' more than one blue, red, etc. This wasn't what I said, and there are, as you no doubt know very well, very good and practical reasons to have several versions of such colors.
Just not as many as in that ridiculous, expensive set of blues for instance.