Un article du New York Times
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The Britannica, the oldest continuously published encyclopedia in the English language, has become a luxury item with a $1,395 price tag. It is frequently bought by embassies, libraries and research institutions, and by well-educated, upscale consumers who felt an attachment to the set of bound volumes. Only 8,000 sets of the 2010 edition have been sold, and the remaining 4,000 have been stored in a warehouse until they are bought.

Sales of the Britannica peaked in 1990, when 120,000 sets were sold in the United States.