It's amazing what writers can make off a single song. A friend of mine wrote a song 45 years ago that became a hit in England. It got used in a movie last year. He received royalties last year of $13,000 for the one song. Not bad for a 45 year old song. Imagine the $$$ that someone like Lenon/McCartney or Carol King (no relation) make on old songs. Page one of a 4 page list of King/Geffen songs: http://www.spectropop.com/brill/zzkingsonglist1.html#start