Exactly. It gets back to what I was saying above about the platform vs. the programming.Radio owners and operators who think they are in the broadcasting business will perish. Any of who realize they are in the audio entertainment and information business will continue.
Personally I'm platform agnostic. I'm a news/talk junkie so when I'm in the car I try my best to listen to AM radio through the static. At home it's Internet streaming of AM content. For personal listening with earbuds it's AM content through a phone app.
Once cost-effective streaming in the car is a reality I may never use terrestrial AM radio again, but I hope the programming doesn't disappear. That's a danger when everything is streamed. Will the equivalent of all-news radio sound like, "Hey Guys, what's up? We've got like 22 minutes, or maybe an hour, to talk about like, you know ... stuff."
Broadcast radio provides structure and requires a certain amount of discipline. For music it's personality, putting songs into some context and adding other elements of interest. For news it's a tight clock. For talk radio it means the hosts can't just ramble on forever. In the glory days of radio there was a PD who kept it all together and flowing.
I don't worry so much about losing towers but i do worry about losing what we know of as "radio." If radio management would focus more on the programming and less on creating so called "synergies' across digital and social media I think there would be less danger of losing the programming that's kept broadcast radio flourishing all these years. As digital technology and usage evolves the synergy will take care of itself.