> You can still pay for your music the old-fashioned way, by buying songs on Amazon MP3, iTunes, etc., which will yield you DRM-free, plain MP3 / AAC files that you can use where and how you want to (unless, apparently, you entrust them to iTunes and enable iTunes Music...).

This is true now, but it wasn't always; it's a hard-fought right that should be appreciated rather than taken for granted. (Not to say that you are so taking it, but a superficial reading of your post might sound that way.)