There are several people on the list who have not heard him, some of them may want to see the person and listen from the horses mouth even if they have seen the video. Lot of people in IIT want to listen to him.
I agree with you that people/pupils of IIT are some of the best budding engineers (they crack IIT-JEE). And they want to know the guiding philosophy and quality existence of perceptions and open innovations.
But I strongly feel there is a need for updation in the components of the objective of his speech.
I strongly recommend those of you who have not heard him before to go there and listen to him.