We (H & R Magic Books) have a few new copies in stock for just $7.50 each plus shipping. Use the search function on our site and search under "Benatar" and several things will come up, including his TRANSIT CUPS AND BALLS (20 pages, 1989). Though not listed on the website, we also have copies in Spanish, also just $7.50. Here's a link to our site: www.magicbookshop.com
You'll see the search engine after entering the site. Hope this helps. All Rafael's thinking is worth studying.