Illegal digital downloads disrupted everything, and cut profits substantially. Luckily, Apple and Steve Jobs showed up and offered a brief reprieve. But now, just a 10 years into paid digital downloads, when the new revenue is still a tiny fraction of the old revenue, the field is disrupted again by streaming. And as with previous disruptions, it appears revenue will again be cut dramatically.
I'm not sure what the takeaway is. Maybe the importance of owning your distribution channels?