The best advice for those who have art in their homes is to be leery of who you let into your residence, especially contractors with whom you don't have an established relationship. Keep track of who does work in your house. And don't share information with others about the value of your art and other valuables.
With regard to the hip aesthetic sensibility of Warhol, Haring, and Basquiat, Finster's works are sometimes judged to be simply unconscious folksy variations on the New Yorkers' ironic pop-cartoon aesthetic of commercial marketability in an age of ubiquitous mechanical reproduction. This seems, however, too much like an interpretive judgement.
A quick one-and-a-half-hour road trip on Long Island takes you on a journey through New York history. I highly recommend this trip in the summer time (when these places are officially open) for the city folks and tourists who are looking for a road trip that promises lots of open space and fresh air.