Agreed. Not sure why, but there is this notion that when an industry is created it is immortal - not only that, but also always increasing in profit, margin, market. Strange, really, since by now we should all understand that the very fabric of life revolves around evolution, and of course, death.
And of course the music industry really isn't going anywhere. Lady Gaga could charge $0 for her music and she'd still be very wealthy. Look at 50 cent -- he made north of $100 million off of his endorsement of Vitamin Water alone. It's just a guess, but I doubt he's ever made that much from his music.