Chicago Tribune | Will Howard Stern's shock lose its awe?

Chicago Tribune Howard Stern's shock?: "There's no question, however, that, in the short term, at least, audiences have been intrigued by the opportunity to hear X-rated radio uncensored. New York-based Sirius announced last Thursday that it ended 2005 with more than 3.3 million subscribers, up from 1.1 million a year earlier. The firm gave a great deal of the credit to Stern, rewarding him with 34 million shares of stock worth about $220 million."
Could someone please explain what cause for this attraction to vulgarity there could be, other than a sin nature as described in the Bible? I would really like to know.