This is not unusual. Albums don't sell like they used to anymore. People tend to buy MP3 downloads as individual songs. It's a different market now. The top 100 best selling albums of all time are all from the 70's, 80's, and 90's. That's it. Once we moved into the internet digital age in the 2000's, no artist has been able to break the record by selling the amount they used to in decades before. And Madonna's at the top of the best selling albums of all time several times. Someone commented about Janet Jackson, but she's nowhere in that top selling album list. And I love Janet.