Part of Flickr's 20th birthday celebrations. There is also an option for a one year subscription for US$64.75, usually US$80.99 (use the code 'FLICKRFOREVR1' instead). Unfortunately …
Officeworks link Cheapest that I've seen this new (20% off the RRP). Prices coming down now that the Pocket 3 has been out for a few months. Some other stores are also starting to discount …