If you don't mind a French edition of The Art of Kung Fu Panda, aka Le Making Of de Kung Fu Panda, you can get it on Amazon.ca | Amazon.co.uk | Amazon.fr | Amazon.de

Price on Amazon Canada is higher I suppose because it has to import the book in from Europe.

The French edition is not published by Insight Editions though.

The English edition meanwhile is selling over US$100 as it's out of print. Hopefully there will will be a reprint when Kung Fu Panda 2 is out.