It assumes that a pre-purchase is to buy an item before it goes but hurry the first day to buy the pre-purchase and then leave it until the last day ? then to buy the pre-purchase if everyone will be able to enjoy 1 week in advance . there would have been better to put the pre-purchase one month before and was then closed the pre-purchase aver the 1st of December and all those who bought the pre-purchase aver enjoyed the week ahead ? but let ultmo day until I see something absurd. and as I always say is an observation but it is not very logical .