I think a lot of it is that there are a ton of people that LOVE old ayumi and what her to do that same stuff...
I LOVE LOVE LOVE old ayumi, shes why i am a fan today! But I also enjoy her new stuff. Is it the same as her I am album, hell no! But I enjoy Party Queen a lot, there are flaws (ESM -.-), but over all Im happy with it and it seems like with the new mini LOVE, it sounds a little more like old ayumi and I love when she does that!