I realize there are holes/ways around this argument based on relaxed DRM restrictions in recent years, but this point is still valid compared to traditional ownership:
Wait until your $900 phone or your $2000 computer dies, and then find out how your music is taken from you.
Wait until you die, and want to leave the valuable things you have collected in your life to your kin, and find out how your music is taken from you.
Wait until you hit a financial rough patch, or the next great depression, and you need to liquidate your assets to survive, and find out how your music ownership is taken from you.
Wait until you switch platforms, and find out how your music is taken from you,
Wait until your $900 phone or your $2000 computer become unsupported by new software, and find out how your music is taken from you.
Wait until you want to loan a cathartic album to your suffering friend, and find out how your music is taken from you.
Wait until you want a higher quality music experience, and find out how your music is taken from you.
Wait until you give/sell music you no no longer listen to, and find out how your music ownership is taken from you.
Owning something digital, is owning the rights to something, not owning the thing itself. There is a fundamental difference that big tech would like you to forget about. This logic is even much more important when it comes to books. For many people, a book is a precious thing, and joy is derived from sharing, giving, selling, and inheriting to others. Say bye bye to the timeless treasure that are books.
I for one think there needs to be digital rights legislation enacted to protect americans from purchasing things, that they can't actually own, even thought they think they do. Hundreds of pages of iTunes terms and conditions doesn't absolve big tech of this issue.
I normally refrain from grumpy replies, but this one is important to me.