Just a heads up, some mean person/people on Ebay is selling the three posters that are CURRENTLY AVAILABLE at the Cyan store for over a hundred times the cost:
http://www.ebay.co.uk/itm/MYST-20th-ANN ... 1619259805?
http://www.ebay.co.uk/itm/231619262866
http://www.ebay.co.uk/itm/231619265727
I wish there was something we could do about this. Just remember to always be smart about what you buy, and always do a little research first.