They can play that one song some 30 times in one day. This is not promoting anymore, it is totally destroying a good song (if it's good of course).
There so many songs in the world, it is not necessary to just play current songs. I'd say that many of the old ones are better than the ones now.
Don't you just miss the old ones by 3 Doors Down, My Chemical Romance, Alicia Keys, Papa Roach, Oasis and so many others?
One of my favourites!