Interesting to see the Perth Mint sold 1,500 Platypus coins in one week, that was close to the total minted for all of 2014. Declared mintages for the Platypus are:
2011 - 30,000
2012 - 26,580
2013 - 2,000
2014 - 1,616
Will 2013 and 2014 coins fetch a premium in the future due to low mintages...