I don't think mine has the sticker on it. I'd have to go check. As a general rule, it's always better to have a copy of something complete with things like that (stickers, info/fact sheets, ect.) than without. As far as the information on the sticker goes, the three volumes of The Funeral Of Hearts were released on that date in the UK. The promo itself is from the UK. The exact date of when they started sending them out isn't known, but I would assume it was in or around December as to go along with the title being "Black Christmas." It's not too terribly rare or sought after these days. The prices on them have considerably dropped over the years. They're worth around $30 on average now, but you may see some sell for more or some for even less. With the sticker, since you don't see too many of them out there with it for whatever reason, it's hard to say how much it's worth exactly. Whatever someone is willing to pay, I guess, but probably not much more than $75 to someone who really really wants it.