Question about rare minis

  • I have been around awhile and am curious, knowing that their is a bunch of minis that have not been obtainable for years, Asura, Destroying, Ceratadon, MGK, Yeti ETC. Why are some like asura still so cheap?

    With the amount of botters and gold farmers etc, I find it weird that this economy does not act like the one's we saw in runescape with partyhats where they all just get eaten up and consistently rise in price.

    Is their anywhere we can see statistics of how many of each mini exist?