Audio books will no longer be sold on cassette tapes at Hachette due to poor demand. Cassette player sales have dwindled dramatically with sales dropping from 18 million in 1994 to 480,000 in 2007. Frankly, it surprises me more that anyone is still buying a new portable cassette player.
Cassette audio books accounted for 7 percent share of the audio book market and while retailers have, for the most part, discontinued their inventory, there still is a small consumer base of libraries and truckers who keep up demand.
Via New York Times.