I don't think he actually needed anything from the guy, he is just a businessman and know what to do in order to attract the attention of people to him, what he is trying to do is to promote his project tron and the truth is that jut because of this little act of his, he would make even much more than the money he has spent to see Warren Buffet because a lot of persons might now be interested in the project, driving the price of the coin high.