Satellite radio has never suffered from a lack of faith on the part of its investors. “It’s only a matter of time,” we’ve been constantly told, before pay radio becomes the new standard in a media universe clogged with corporate radio conglomerates, 8-minute ad blocks, and shrinking playlists. The predictions may have seemed grandiose, but with XM and Sirius finally snaring some top-of-the-line star personalities (Howard Stern, Martha Stewart, and Bob Dylan) and securing exclusive deals with the four major sports leagues, satellite may be on the verge of fulfilling its promise.