Weeks after Conan O'Brien was reported to have been quietly listing his duplex penthouse in The Majestic building in Manhattan, the wan will o' the wisp (as we once read him described) has officially listed the unit for $29,500,000.

Props to Chloe Malle over at the New York Observer for reporting last week on O'Brien's new "formal" price tag for the 17th and 18-floor penthouse, which is in the Art Deco-style building at 115 Central Park West. He is listing the unit through Brown Harris Stevens' "private directory," and using power agent John Burger (loyal readers know how seldom we ever mention agents by name). Features in the seven-bedroom unit include eight baths, three terraces, two libraries and park views.

In 2002, Conan purchased the first portion of his spread -- namely, two 17th-floor units (#17B and #17C) -- for an undisclosed price. Then, in early 2007, through a variation of his name ("C. Christopher O'Brien"), the funnyman purchased the penthouse unit (#18C) above his 17th-floor unit for around $10 million. We first wrote about that purchase back in December 2006.

The question remains: is Conan done in L.A.? We don't think anyone knows the answer to that question yet. Obviously, his six-bedroom mansion on Tigertail Road in Los Angeles' Brentwood area, which he purchased in 2008 for $10,750,000, would have to go if he were to do a future show from NYC. However, we're betting that a show for FOX ends up being based in L.A. Stay tuned.