This weekend I attended Phoenix Comic Con and Billy Dee Williams was one of the top stars to attend. He was rather short on words but grateful and pleased to be out with his fans.
As of our Con, Billy Dee charges $40 per signature. If you need a photo he graciously throws one of his own in for the same price. He also offers for $2 per item an authorized validation system that gives you proof of its authenticity.
This is my own personal video footage that I shot from the event from the front row: