Exile ID 400% Be@rbrick

These come in black and white flocked. I always like flocked be@rbrick because if the texture even though i didnt have much. I have yet to own a totally flocked 400% be@rbrick yet. These will be out next month at 6300yen. I notice one thing regarding the price of the 400%. There is no fixed price for them, sometimes they are selling for 6090 yen, some at 6300 yen, some at 7140yen and the matt black at 9240yen. Has this got to do with the number of pieces?? (Source : bearbrickmania)