2. It took hours for Banksy to make his first sale, and it was only after he agreed to a 50% discount from the $60 list price.
3. He appears to have sold many more throughout the day.
4. People are tweeting about how the unknowing buyers have just stumbled upon small fortunes.
omfg the ppl who unknowingly bought these r rich now RT @samir: wow, banksy sold art in NYC yesterday and no-one knew http://t.co/AOqO6g3hKU