Is the "same old sound" the real reason of Ayu's declining sales?

[truehappiness]

The sound probably doesn't have anything to do with it, and it's more that people just are growing apart from her on top of her being around for as long as she has without stopping. For a lot of people who did like her, I think they just lost interest at around 2006-2007 and that's also where she ended musically for the Japanese public. In recent years when she is newsworthy it's because of a scandal or something as opposed to her music which is her image nowadays.