Pretty good piece in the New Yorker about Jamy Ian Swiss and others in the magic community. I thought it captured some real insights into why we do this nutty thing.
http://www.newyorker.com/reporting/2008/03/17/080317fa_fact_gopnik?currentPage=all
http://www.newyorker.com/reporting/2008/03/17/080317fa_fact_gopnik?currentPage=all
Magicians have the most rapturous and absorbed shoptalk of any artists I know. This is partly because magicians have leisure between gigs, and partly because much of the pleasure of being a magician is membership in a subculture, where methods and myths can be appreciated only by initiates. Magicians are, in their relations with one another, both extremely generous and extremely jealous. Just as chefs know that recipes are of little value in themselves, magicians know that learning the method is only the beginning of doing the trick.