It has nothing to do with competence for many users. I'm perfectly competent with computers and have all of my files organized just the way I want them. As part

It has nothing to do with competence for many users. I'm perfectly competent with computers and have all of my files organized just the way I want them. As part of that, I use iTunes because it acts as a good "database-style" front-end to my music and all of the operations I want to do with my songs/collections thereof. Manually organizing files in a hierarchical folder structure isn't the end-all be-all of productivity. I can't imagine what I'd gain from manually organizing all my music and I'd lose a lot of functionality.