Little-known facts: the book

In time for holiday shoppers, I am planning to make a book of around 2 dozen “Little-known facts” pieces previously published on this weblog. It will be professionally printed on off-white paper and hand-bound by me in the traditional Japanese stab binding style. I’m running to the art supply store this Friday to look for some nice paper for the covers. The format will be roughly 8″ square, and if the current layout is maintained it will be around 50-60 pages long, with illustrations.

I may also include a bonus surprise in each book, but not sure about that yet.

I would charge around ten Euro per book, which is about 14 U.S. dollars at current rates of exchange, plus postage. Payment would probably have to be via Paypal, unless someone trusts me with cash or has a better idea.
I have a figure in my mind, a certain number of books I would produce. They would be numbered individually. What I would like to know from you is if my number is high or low. How many of you would be interested in buying how many copies of this book?