I've read that in Radio World (I think)...the "couple of million". Though I probably shouldn't have written it since I can't point to it. But hell, it's (likely) as accurate as a "couple of hundred thousand". The truth is, I DON'T FREAKIN' KNOW! And neither do you.
But politics aside, have you seen the number of products out there now with HD? It's everywhere. It's growing. It's in products by the biggest names in consumer electronics (remember when people here said "it's just a bunch of small companies nobody's heard of). It's cheap (remember when people said "it'll never be cheap enough people will pay for it") It's in shelf systems. It's in home theater receivers. It's in table radios. It's in PORTABLES (how many people said that wouldn't happen? I've heard the Coby uses a laptop battery (!)...still, it's portable. REAL portables will come with the new low voltage chips). It's in CARS from MAJOR MANUFACTURERS (not all of them, but some...and many here said THAT would never happen). It's available from the biggest retailers...nearly all of them (though you may have to scour the website of a few).
Now don't misunderstand...I'm not saying I think millions of people KNOW they have HD, or understand what the hell it is. I'm just saying that this isn't even necessary for the technology to succeed. Belief that consumers must understand broadcast technology for it to flourish is REALLY a stretch! HD is a standard, and as such it's being incorportated into more THINGS that people buy. Apple is sold on HD Radio, and working with to help with products that use the meta tags from HD, linking them to Itunes (meaningless to me, as I'm NOT an Ipod owner, and won't likely ever be!)
Digital audio is the next evolution in radio technolgy...EVOLUTION, not revolution (and then only for FM stations). As for stations not being able to sell ads on the new channels, I won't even justify that with a response. Ok I will...OBVIOUSLY it comes from someone who doesn't work in broadcasting, and has never met a GOOD Sales Manager!
People here often speak of satellite radio as if it's a roaring success. Fact: Goldman Sachs just changed their recommendations on XM and Sirius stock to SELL, despite the merger. Their reason? Young people ARE NOT ADOPTING SATELLITE RADIO IN LARGE NUMBERS!
Here's another interesting fact. Terrestrial radio listening for teens and young adults has actually been going back up this year (for the first time in several). The young audience that many here (and elsewhere) had written off as "unreachable" is being REACHED! This surprises me not a bit. Radio ALWAYS "finds a way"...always adopts to changing market conditions and listener expectations. Always has. Always will.
Now I'm not saying HD is the "salvation" of radio, or anything like it. As I (and others) have pointed out, success in radio is about PROGRAMMING! The programming department draws "warm bodies" around the box, so the sales staff can "pitch" to 'em. Our "business model" is really that simple. As for whether it's analog or digital...delivered by a tall tower, or the "interweb" (which is a series of tubes, in case you hadn't heard), matters not a whit. Digital WILL be (most of) the future because it's a more efficient way of delivering large amounts of programming with limited bandwidth. But frankly I don't care if, long range, those "packets of data" arrive via the much heralded (though nonexistant!) "Wi-Max" network, or via HD. It just makes no freakin' difference. It'll be digital. It'll be better. And, especially if analog radio co-exists...as it should for public safety reasons, everybody wins, and nobody loses (once the abomination that is AM HD is put out of it's, and our, misery!)