if it were rereleased, i dont know how many people would buy more than one or two. most people just want it now to complete their collection, not because its some fantastic amazing product.
if anyone bought more than 2 in order to sell it for big bucks later on, they would probably have little luck. it probably wouldnt go for more than $30 for a few years.
id buy one if it was rereleased, i am over back ups. like someone said, they last forever. ive had my porcelain pink for almost a year, and i use it everyday, and its only just gotten flattened. there is still plenty of product in it, could last me another year or so.