Tarrot Cards

New York is just an endless sea of bodegas, corner delis, and seedy establishments where you can have your palm read or have a psychic tell you that the sky is blue. What is the deal with the latter establishment? I realize that you go to the bodega for terrible schwag and then the deli for the post-high feast, but why are there so many of these palm reader/psychics in the city? Don't they have to pay absurd rents, like the restaurant and Starbucks that are housed on either side? I can't recall ever seeing a single person in a place like that. Are these places fronts for brothels? Massage parlors? If we keep with the drug theme, is this where to shop for an "O" of blow? Something doesn't add up in my mind. How do they survive in abundance? Please advise.