No matter how you feel about the British stencil artist Banksy, you have to admit one thing: his stuff sells for a lot of money. His works have been going for over half a million dollars lately. A homeowner in the UK with a Banksy mural on the side of her house decided to simply sell the mural through an art gallery, and throw in the home for free. But one NYC store owner lucky enough to have a Banksy piece on his building (pictured) was either too ignorant, or too stubborn to take advantage of it. Yes: he painted over it. I hope he loved his momentarily whitewashed wall, because it cost him hundreds of thousands of dollars. The kind of funny, and kind of painful pictures [via SuperTouch] of the man in the revenue-destroying act, after the jump. Ouch.