Feynman Lectures?

[gumpzilla]

I'm not sure that these books make particularly good textbooks. Why are they so popular? First off, there is a massive cult of Feynman. Secondly, he has legitimately interesting ways of looking at a broad variety of phenomena. His insights, and what he chooses to accentuate, are interesting in themselves, even though the material covered in the lectures can certainly be studied elsewhere.