Just to add my 'two chips worth'..... I love the book. (AND, I'll be the first to admit I buy Playboy for the pictures ). My rookie method is to use your book, TCR, help I can get from the 'pros', and any other information I can find. I add up all that information, take the average, add in the how-much-do-I-want-this-chip factor and then determine how much I'm willing to pay when ebay shopping. Thanks for your effort.