So they are selling a book, cds dvds and t-shirts. The concerts only just cover their costs. What about piracy? They won't be able to sell that much music and m

So they are selling a book, cds dvds and t-shirts. The concerts only just cover their costs. What about piracy? They won't be able to sell that much music and movies, will they? When electronic books mature the same will probably happen to books too. That leaves the t-shirts. The only remaining economic value of music is advertising hard-to-copy items? I guess we're going to hear a lot of songs about clothes.