I've just finished reading Harry Pearson's hilarious memoir of a life in wargaming Achtung Shweinehund!. (Thanks Iain for the recommendation!) I particularly enjoyed the chapters about his childhood - Airfix kits, Waddingtons games, spud guns, Commando comics, war films, Airfix OO/HO figures - my own childhood obsessions are all there. The chapter about Action Man had me gasping for air - I can't remember when I last laughed so much.
C.S. Lewis wrote "We read to know we are not alone." This book is a funny and touching reflection on what it means to live with our compelling, fascinating, but socially rather embarrassing hobby.