Your right about that. Radio is this country is just a few heartbeats from being dead. With Ipods, MP3 players, satellite radio, etc. there is so much more to listen to then the radio. Stop sets with 6 or longer minutes of commercials drive listeners nuts and having an alternate source of entertainment is a nail in the coffin for stations here in the USA. AM radio is just about history, even with AM revitalization clogging the FM band with their low power translators is too little too late. HD radio is nothing big, it's known as high dollar radio or half a$$ digital. Stations are not adopting it very fast with the cost of the equipment and paying high licensing fees to DTS (DTS purchased iBiquity last year) and audio quality at least in my opinion is not the greatest, better than Sirius XM but not much better when multiple streams are in the mux.That's just it: consumers aren't buying new radios, at least here in the states. If FM goes away, most of the population won't care.
Radio in general is moving online and mobile listening is being done over cellular networks more and more.
The last "technology refresh" OTA radio got in North America was the adoption of a proprietary, feeble, expensive and utterly useless implementation of digital known as HD radio from your friends at iBiquity,
How many people are running out to buy them? very few, so few, consumer electronics stores and mass retailers like Wal-Mart don't even carry them.
My car has a built in HD radio and can be configured to automatically use the HD signal first but dropouts are numerous and the diversity delay for the analog signal to match the HD audio is off and causing terrible blending when the HD signal drops out. Some of the problem is stations are cutting back on engineers to make sure both signals are up to par, quality suffers. I worked in radio many years ago when it was profitable with live DJ's and no voice tracking that is so present today. I have disabled the auto HD signal detect and listen to good old analog FM broadcasting and when properly engineered sounds fantastic.