Hatsune Miku Append Figma

This is my Hatsune Miku Append figma coincidentally found at a figure shop called "Ex Akihabara Bookstore"(エックス 秋葉原 本屋) under the train bridge. Bought it for ¥3,333 with tax as shown online in Goodsmile.  The store clerk told me that this model is selling fast in Japan rather than the normal version of her. I wonder if they have the cosplay for it....