At the beginning of the Minikin craze with series 1, when black minikins were first popping up some were sellings for crazy amounts, $200+. But after they were out for awhile and the crazy died out the Black Minikins were selling for a lot less. Right before series 2 came out I was seeing a bunch selling for around $40-$60.
The craze with series 2 is just the same, although I dont think they will be selling for around $200 this time around, Closer to $100. The popularity of the character plays a part too.
I greatly appreciate the info, Ericnilla. Any idea which characters seem to be the most popular? I certainly have my favorites but I'm wondering if there's a general consensus as to which are the most desirable.