I think that the creators of drunk duck now have the leverage to make a publishing company for graphic novels. (think tokyopop) People also know what drunk duck is, also they have a huge amount of artists to choose from to make graphic novels. I'm sure that alot of artists making web comics would not mind if they got a large cut of the money and have their comic put into the form of a book.
Keep in mind that having the graphic novels out their would make more people got o drunk duck. Therefore they could raise the price on adds and make more money.