[2009] What actually causes ayu's sales to drop?

[Sophia ~ The goddess of Wisdom]

One reason why I think she appears to be declining very rapidly in her album and single sales is because for the last couple of years, she has been focussing very intently on the overall asian market, so I think that alot of her CD's are selling VERY well in other Asian markets because they have not had so much of her yet, whereas in Japan, she is already very commonplace.