Bit of a specialist one, but they have been releasing these special edition magazines for a little while now, and they were £9.99 each. they are currently half price in WH Smiths (where available, in store only). Much better value, I found the Hardware vol 2, and volumes 3 & 4 of the series in my local Smiths in North Finchley. Nothing to say they were half price other than scanning through as such.
Apologies for edit, unsure if it's Games™ magazine, Retro Gamer magazine, or a collaboration of them both.