There is this moment in the documentary ‘Banksy does New York’ where Banksy puts up a roadside stand in NY and has an old gent sell his works, $60 a piece. There are just three takers for his works. Each piece is now valued at 250k or more.
The documentary itself is a wholesome slice of humanity. There are those seeking to monetize his works: art dealers, enthusiasts, the public, and then there’s him: going around town and just ‘creating’.