Let's maintain perspective, people. Miyazaki Hayao is a fine artist in his field; Nausicaä and Spirited Away are must-sees. (I only wish the dubbing studios weren't so enamored of star power and would go with lesser-known but more versatile voice actors, such as... such as... well, modesty forbids me to say. Résumé to follow.)
But geez, the guy's 70. Even Buckminster Fuller started getting a little crotchety in his seventies. Me, I'm waiting on what Takahashi Rumiko has to say on the matter.

@acarzt (below): You know it. The drawing above, of the cast from Urusei Yatsura (translation: "Bad neighbors" or "People from Devil-Star"... Takahashi loves multilingual puns) has about ten years' worth of concentrated weirdness; but for all its frenetic plot, there are weirder characters. I will only mention Toriyama Akira's Dr. Slump, the adventures of a mad inventor; you may know Toriyama better as the Dragon Ball Z guy. Dr. Slump featured aliens with their butts on their heads, a super-strong and somewhat clueless little girl robot, and a sentient pile of poo. And this was ages before South Park's Mr. Hanky.