I think it is a prefrence of listening. Using mp3's allows you to listen to a wide variety of songs, without haveing to change cd's, or buy cd's. If you get a good player, it will pick songs for you based on your prefrences, and then you can listen to any given time's worth of random mixed up music. It is basically like listening to the radio, but being sure that only the kinds of music you like is going to be played, and there are no comercials...
I think it is a prefrence of listening. Using mp3's allows you to listen to a wide variety of songs, without haveing to change cd's, or buy cd's. If you get a good player, it will pick songs for you based on your prefrences, and then you can listen to any given time's worth of random mixed up music. It is basically like listening to the radio, but being sure that only the kinds of music you like is going to be played, and there are no comercials...
In short, it is just convenient.