The wait seemed interminable, but it looks like Moby has finally a buyer for the four-level penthouse he's abandoning on the Upper West Side. According to Streeteasy.com, the nine-room co-op, on the market for $7.5 million, just went into contract. The electronica guru bought the apartment atop the El Dorado — the building where Marilyn Monroe once lived — two years ago, but apparently had a change of heart. (This despite five terraces from which to enjoy the beautiful blue sky.) According to Gawker, Moby still thinks it "the most interesting and unique apartment I've ever seen in New York City," but he missed downtown too much to make his move permanent. (He was serious about selling, even plugging the apartment in a Webcast.) No word on where he'll next land. —S. Jhoanna Robledo