Radio ads, in addition to being cheaper than TV ads, can be tailored to the local market. The local radio station is a folklore tradition while the local TV station doesn't really exist. Local stations carry news and live programming about important issues within a particular area - say, a primary state. Radio station programs, unlike TV, are specifically oriented to well-defined markets - such as adult contemporary, sports talk, foreign language, alternative rock. The ads may be pitched accordingly while a studio guest addresses issues relevant to that station's listenership.
Going from local interest to national impact, wonder what role XM or Sirius radio will play in the 2008 general presidential election.
