Don't forget iTunes. Part of why iPod succeeded because it allowed stress free easy access to a giant % of the world's music, all at one constant price.
The iPod wasn't revolutionary in any respect, it was a perfectly executed version of what other people were already doing, that had a huge, incredibly well done, marketing push behind it, with even the smallest detail given attention.
Also the white ear buds were genius. Everyone who used them was advertising the product.
That’s true. It took two years for Apple to sell thier first million. It wasn’t until both the music store came online and iTunes was released for Windows that it took off.
But even by 2007, a small percentage of the music people had on iPods were bought through iTunes (less than 10%?) according to Jobs “Thoughts on Music” essay.