He made a commitment to write the books, so he damned well needs to write the books. I know his defenders are always saying shit like, "but he's given us these wonderful books, he doesn't owe us anything." To which I say: bullshit. To use an old phrase, you dance with the one who brung you. Your fans made you, dude. You can write until your fingers bleed, but without readers, you're nothing. I bought his books and he made a commitment to finish them by choosing to write them as he did. And, by his own statements. Finish the damned books, man. If you die and don't finish them because you're a jerk, then you won't be remembered as some great author. You'll be remembered as a hack who couldn't finish what he started.