The most expensive candy I've ever bought (six bucks for a less-than-huge bag of Reese's Pieces?) was from my local chain movie theater.  In my view that's pretty outrageous, but that six bucks probably wouldn't be good enough to obtain even a microscopic grain of goodness from the La Madeline au Truffle.  This succulent sweet is served up by Knipschildt Chocolatier, which is based in South Norwalk, Connecticut.  Though it may lack the showiness of the gold-encrusted chocolate from Delafee International, the truffle is recognized as the most expensive chocolate in the world - a whopping $250 per 1.9oz piece.  By my calculations, the movie theater would charge somewhere in the low five figures for one of these treats (with special 50-cent discount if purchased with a soda).  Each indulgence starts with a rare French Perigord truffle that is surrounded by a Valrhona dark chocolate mixture, and then rolled in fine cocoa powder.  I suggest a robust 2% milk to wash it all down.