Then there’s Mark Kostabi, the former New York gossip column fixture and self-professed “con artist” who everybody remembers but nobody talks about. Christie’s and Sotheby’s have no comment. Neither does the MoMA, the Guggenheim, or the Met, despite the curious fact that they all have Kostabis in their permanent collections. As for quotes from some highfalutin critics expounding on the semiotics of cone hats, cash registers, and the Sony Walkman in Kostabi’s work? Not a chance.