Since announcing on October 6 2004 that it had signed Howard Stern to a five-year deal Sirius Satellite Radio has added approximately 2.7 million subscribers and become a household name in the satellite radio world. The tab: Close to $700 million. Is Stern worth it? Can the popular and raunchy talk show host catapult Sirius ahead of rival XM Satellite Radio or are there other issues to consider such as the threat of new technologies the need to provide good content and the continuing popularity of conventional radio? Wharton faculty and others debate the different strategies of Sirius and XM and the challenges that both face.