I don't know if "classic rock" is a radio format, a time period or a music genre. Depending on how you define it, you might like or dislike it. If it includes folk rock, punk, soul, jazz-rock, garage and everything else that took place in that period, the "deep cuts", I'm all for it. But if it's only the Beatles, Stones, Springsteen and heavy metal, it becomes tiresome.
But I think FM is truly in decline. If you're under 30, you almost never do it, even in the car, which is it's last bastion. Once every car is on-line, it’s gone.