[behindthemask]

part of the resale growth comes from nostalgic/sentimental attatchment for the subject matter in question the other factors are condition and availablity. Ex lots of people love superman, you may have an old figure that would sell well and easy, factor in that it's mint and not loose, factor in he's green instead of blue and you have 1 super crazy rare toy. Sometimes people will come across the perfect storm of factors to generate 1 super expensive toy. Like the ML deadpool figure I seen a red comic variant going for $500 on ebay.