Banksy would probably agree with you, he’s always disliked the idea of street art being permanent or valuable
He once set up a stall in New York and sold some of his stuff anonymously for a pittance. The people who bought it didn’t realise that had something worth thousands and some of it was left over at the end of the day!
“I know street art can feel increasingly like the marketing wing of an art career, so I wanted to make some art without the price tag attached,” he said.
“There is no gallery show or book or film. It’s pointless. Which hopefully means something.” Banksy