Remarkable, yes, but I had a Pixar insider look at it. He came back and told me they could have done it all with computer-generated geometry in half the time for 1/10th of the money -- and you still wouldn't have been able to tell it wasn't real.
Chalk it up as an expensive novelty in advertising; a failure to engage the power of a better medium.
Oh, and I like the Suburban Trunk Monkey better.
Yes, It's good and the Trunk Monkey series is better, but I also like the Ford Ka Pigeon.