I don't mean to brag, but I own "Hey Jude" by the Beatles.
I wonder what the song Sgt. Pepper's Lonely Heart Club Band would sell for it you could own it in the same way that you could own Munch's The Scream ($119.9 million) or Cezanne's The Card Players ($254 million) or DaVinci's Mona Lisa (priceless).
Owning a painting and owning a song are very different things. Maybe that's because music is meant to be communal. If you could dance to paintings, maybe they'd be affordable and owned by millions of people as well.
So you have to wonder if in the future, the price of the Mona Lisa will be 99 cents once we learn how to copy art with as much fidelity as we now copy music. Will the iPad do for art what the radio did for music?