I own most of all of the press kits available (probably missing a Japanese one) and most of all limited collectible edition items
I am only missing 4 things (important enough that I am aiming to get one day): The Hand model hidden blade replica limited + The ring with the red wax + The venetician mask
I do not have unimportant goodies like "Keychains", "Mousepad", unofficial mugs ect... I only go sometimes for unofficial when I find the item kinda interesting such as one of the print.