The "Why is [insert terrestrial station] so boring?" question could be asked for 99.9% of the stations in the nation. And the lowest-common-denominator answer offered above will always be the same.
My first instinct when reading the "deserted island" comment was, "If that's terrestrial radio's new business model then the industry's more screwed than even I thought it was." But in reality, that's not only what it is-- but what it's been for some time now. The only ones still counting on these dinosaurs to entertain them musically are the ones who are either not financially in a position to adopt better, more variety-embracing platforms-- or people who just don't care enough (i.e. easily amused). There's nothing wrong with either; it "is what it is."
After nearly 15 years of looking-in on radio message boards, I find it mind-boggling that so many participants still don't understand how this stuff works. "Lowest common denominator" may sound negative-- and in this respect it kind of is-- but it's one of the few remaining things terrestrial radio does that makes any kind of business sense.
Things are, however, changing. And they're changing faster than terrestrial radio will be able to handle.
As someone who has played records every night for a living (for a long time), I have been astounded to see how different music tastes and music consumption is now compared with just a few years ago. The lowest common denominator method of programming used to work for mobile, club, and bar DJs as well. This is no longer the case. The Internet has changed everything; it is very difficult to please a crowd these days. "Hitting the spot by spotting the hits" used to be a fail-safe that would please almost everyone with relative satisfaction. Now, with a few exceptions, everybody likes something different. And that's not necessarily a bad thing. But it is different. If terrestrial radio thinks it'll be immune to this permanent shift it's once again fooling itself.
As Musichead pointed out, some 94% of Philadelphia radio listeners aren't listening to WOGL-- one of the market's most listened-to stations-- with any regularity. Of course, the longtime terrestrial business model has allowed for a station with a six-share to be considered very successful. Soon however, the real story will be, "six percent of what?" Who are in the six percent? Well, today's WOGL listener is generally part of the same crowd that I've worked with for years. Hard-working, good people who week-in, week-out ask me to play obscure, underplayed gems like "Sweet Caroline", "Sweet Home Alabama", and "Brown-Eyed Girl"-- and get all excited when the tunes come on. Over, and over, and over again. A slightly younger crowd? Maybe they listened to WMGK or "Ben FM." And they ask for "Livin' On A Prayer", "Summer of '69", and "Jessie's Girl." Over and over, and over again. Wedding receptions? It was the Electric Slide, Chicken Dance, "We Are Family", etc. Doesn't matter to me. The fact that I want to vomit is inconsequential. I'm doing my job, making people happy by playing music-- and they think I'm great. These great people-- who have kept me in business for a while-- are the ones who listen to what's left of terrestrial radio.
They're now fading away.
The ones who used to love me for playing the "Bristol Stomp" and "Runaround Sue" rarely come out anymore. Sadly, some have passed away. The younger ones are older too, and now have families and other lives of their own. What's left are younger folks, in their 20s and 30s. Half of the songs they ask for I've never even heard of a lot of the time. (**They** are actually turning **me** on to some good stuff; it used to be the other way around.) Others don't really request songs at all anymore, because the novelty of having a DJ play "their song" is a thing of the past. They can play it whenever they want-- at home, in the car-- or right in the parking lot via their phones.
Oh, and to these younger people-- folks I interact with every night at a variety of places-- regular, AM/FM radio is about as unsexy a technology or medium as one could even imagine.
I used to be able to come up with a few song suggestions by simply asking, "What radio station do you listen to?" Now, the answer more times than not is, "I don't listen to radio."
So the "Greatest Hits of the '60s & '70s" or the "Rock You Grew Up With" may work for a few more years. It'll put some asses in the seats for the time being. But beyond that, terrestrial radio had better have some kind of a game plan. And a sloppy simulcast of an already lousy product online or via some phantom "HD" channel is not a "digital solution."