The end of sketchbook 1 and time for a new beginning

The first sketchbook is completed. It has been a fun and long journey, but all good things come to an end. Lene and I have both had a real blast doing this book and now we need your help. We have talked about auctioning the book away for charity. What we would like to know is: is this a good idea, where is the best place to do so, and would any of you be interested in bidding on this?