Interestingly he was known for pastels and the one pastel that's up is cheaper than one of the watercolours he did for pleasure (not commercially)

Pricing on Ebay is very odd though and often doesn't reflect true value, but what the seller thinks they can get

For sure. I love seeing how the distortions ignore context.

I'm forever boggled by sellers on Reverb who think they can sell a cheap Behringer synth that's £170 new for £280

But then some things are really underpriced, so it's swings and roundabouts

People are obviously stupid enough to cough up. Can't fathom it myself