Yes. I hate when they have a recently released book and the talk is basically just to promote it, and then often if you read the book it has no additional material.
One of the few exceptions to this annoyance I feel as well is Lessig's ongoing talk-athon regarding govt corruption.
No amount of attention-whoring is overkill for this subject, especially when considering that Lessig could easily make 10x the amount of money he is making now by going to some white shoe law firm.
