I just have to add my voice to the growing consensus about the fabulous ‘The Pixar Story’ documentary included on the Wall-E Blu-ray. As so many have said, this extra, by itself, is worth the price of admission for the set, IMO. Wall-E is just a really nice bonus. 
One word of warning: This documentary contains glorious HD footage of all of the Pixar movies which are yet to hit Blu-ray. This may negatively impact the health of those who CANNOT WAIT for the rest of the Pixar catalog to arrive on BD.
…
oh my