The really tenuous reason for this block-buster, designed to make money from Floyd Fans, is that "2016 marks 50 years since Pink Floyd turned professional and became the ‘house band’ of the London Underground movement of music and arts."
UPDATE: From Royal Mail's Press Release:
The stamps will be available to purchase in 8,000 Post Offices from 7 July 2016
Which means that there are 3,000 Post Offices where collectors and fans will NOT be able to buy these stamps.
A set of 6 stamps and a miniature sheet are the products that stamp collectors are expected to buy. The set includes 3 @ 1st class and 3 @ £1.52
The Piper at The Gates of Dawn, Atom Heart Mother, The Dark Side of the Moon.
Animals, Wish You Were Here, The Endless River.
The Miniature Sheet celebrates the live performances of Pink Floyd’s stage shows, with 2 @ 1st class and 2 @ £1.52:
The UFO Club 1966, The Dark Side of the Moon Tour 1973, The Wall Tour 1981, The Division Bell Tour 1994.
For Floyd Fans there are also 10,000 Dark Side of the Moon Maxisheets (priced at £12.95 and reminiscent of the sheet issued in the summer of 2010), a 'Syd Barrett Souvenir Cover' (edition of 3000 priced at £24.99), and some framed products with a top price of £79.99). Floyd Fans will probably remember - stamp collectors certainly will - the Division Bell Sheet issued in March 2010*.
* This is the 2010 sheet, which followed the Classic Album Covers stamps issued January 2010. This is available in our webshop.