Doesn't really matter over the long haul. Radio is pretty much dead, and look where it will be in 10-20 years.
I disagree. TV was suppose to kill radio. Cassette / 8 track and Walkman were going to kill radio. Somebody forgot to tell radio it was dead
IMHO there will be some form of OTA "radio" for a long time to come. The cell / telecom companies would have huge capital expenses to allow every car to stream on 95% of the roads in the USA and it will not be "free" or commercial driven like radio.