If you want to ring in just for the hell of it and try and get a song you like played, which I'll admit I have done, only succeeded once and got the first minute of The Bends by Radiohead played, then it's a fun feature.
Just for listening to though, I agree, pointless.
I remember a few people cringing when he thought a caller had asked for Dr Feelgood by Roxette, not the other way round.