Banksy building owners "hit the jackpot," says art appraiser

The jury has remained out as to whether landlords whose buildings were tagged with a Banksy, during the graffiti artist's month-long New York "residency," were given a burden or a blessing.

http://therealdeal.com/blog/2013/11/02/banksy-building-owners-hit-the-jackpot-says-art-appraiser/