We use to carry this book in store & online, also having trouble replacing it. We had great feedback on it from our customers and i don't believe it was that pricey if i recall correctly. Those books that carry a hefty price tag are usually because the content is fabulous, very very very rarely have a come across something priced to ridiculous terms in a magic shop if it wasn't worth it.
We have a huge array of impromptu magic books, and being a magician myself i only bring in books that i believe are worth value to the budding magician.
Have a look online at www.insanemagic.com.au
to see what rare books we still have.
Insane Magic Shop