Why not Korea?

[Peger]

I was watching a clip of Namie performing in Seoul during her So Crazy tour a few years ago, and i was wondering why Ayu isn't having a concert there as a part of her Asia tour. I've heard explanations for why she isn't going to Beijing and Singapore, but I've never seen anyone even mention the possibility of her going to Korea. Why is that? I know Korea's music industry is going through a huge decline, but Korea is also an important center of modern pop culture...excuse my rambling lol.