Wayne; I would hope that when folks consult "Black's Catalog" for answers to the question Brian posed, that they would refer to the first paragraph that introduces the Price Guide section in all my recent catalogs.

"For users of this value guide, it would be helpful to keep in mind that the following information has been compiled from various sources and represents what the author feels is a fair representation of estimated retail price from established dealers for chips and tokens in excellent condition." (bold italics inserted by this poster)