This is not the “man bites dog” story associated with the earlier post, but The Weekly Standard‘s Matthew Continetti discusses Obama’s overexposure in his latest piece as well:

Faced with the choice, President Obama prefers the comforts of
celebrity to the duties of leadership. In addition to Letterman, there
was his appearance on the
Tonight Show with Jay Leno last March
and his running commentary in the ESPN broadcast booth during
baseball’s All-Star game last July. You might imagine a lame-duck
president making such media appearances, but not one barely nine months
into his term. Obama clearly sees himself as a sort of
salesman-in-chief, and considers endless speechifying and
interview-giving as the best way to further his agenda. The adoring
crowds, raucous applause, and obsequious press coverage that accompany
his appearances are cherries on top.