Tim,
I'll pass on your comments to "my friend". I do think that the second paragraph was tongue-in-cheek, though I could be mistaken.
You are aware that Doak does not put a great deal of weight on his opinions depicted in this book. The book was not researched extensively at all, and was not meant to be published. Some of the courses he opines on he did not play. Many more were based on one round (God knows that raters have been castigated enough for making quick judgements), and considerable amount of time elapsed between playing many of the courses and the actual transcribing of thoughts and notes into publishing form.
But to my original question, any thoughts on the value of the book autographed by the now famous Tom Doak? Personally, I don't think that "my friend" is really interested in selling, though for the right price, who knows?