Back in August, I ordered three PS Publishing slipcased editions on sale at £12.99 each marked down from £60:
Baxter, Stephen. Universes. PS Publishing, 2013. First edition hardback, #131 of 200 signed, numbered copies, a Fine copy in a Fine dust jacket and Fine decorated slipcase.
McAuley, Paul J. A Very British History with A Very British History: Additional Stories. PS Publishing, 2013. First edition hardback, #127 of 200 signed, numbered copies, a Fine copy in a Fine dust jacket and Fine decorated slipcase.
Watson, Ian. The Best of Ian Watson with Squirrel, Reich and Lavender: Bonus Stories. PS Publishing, 2014. First edition hardback, #47 of 100 signed, numbered copies, a Fine copy in a Fine dust jacket and Fine decorated slipcase. Note that in this set the signature page is found in the additional volume, not the main volume.