AUDIO AUDIO AUDIO. The key word is AUDIO.
I know - and I still disagree. I am involved in podcasting - and it's huge and getting bigger. As I said before - it's like Web sites. Many mediocre ones to be sure, but they eventually reshaped news, education, entertainment etc. Radio will be all but done in about 50 years - I never listen to live radio - it's all podcast. Again - check your info - not anecdotes.