We have really become a very applied out family. My 2 sons each have a desk top, I have a desk top, laptop and iPad. All have the iTunes loaded. I noticed that ever since that we are out of users. Why won't apple let us create another user (even for a 1x charge). I purchased this music or loaded it off owned cd's. Is there something I am missing? My son will be getting a MacBook for college and then we will be faced with buying all the music again?