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E, DanielThey're still books Barry, and we just don't do books like we used to. 
When people look at a book, its only of interest to them if there is a plan to read it. Otherwise - what's the point? Why collect something for which there is seemingly no purpose? Now a few such as yourself will of course and therein lies your market and relevant bidding factors.
When they make a one page book that's 2 1/2 x 3 1/2 with a picture on the front and a bit of text on the back - I promise it will earn the same money as a card .
Daniel