Joel,
Did you not give me some information on the latest sales of Thunderbird business card chips that you were tracking from ebay sales? Those are real sales. I compared your information with other collectors as well as dealers that sold these chips. This gave me the most accurate information for our new book. Multiply this by a thousand & you will understand the process we undertook to revise the entire book. Perfection is not possible but on the whole its pretty damn accurate. To say that book authors only make up values is a slap in the face to all of us.

Dont you track chips & have tons of values of chips sold on ebay?
Is it wishful that many top chips are bringing triple my high book prices of 4 years ago?
I sell more obsolete chips than anyone. My sales are facts. You buy from me so you know I sell chips. Frankly I am very surprised you made this post. Did one of those rattle snakes bite you while hiking today?