system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are Banksy's paintings, grafitti, and other artwork worth so much money?
gpt
Honestly, because people are willing to pay that much for them. That's why most things cost what they do.  As to why some artists take off while others stay penniless, nobody has ever come up with a good way to explain fashion trends.