"But the Kindle is still too expensive for mass
adoption, particularly as it is an entirely closed system that
mostly limits you to reading content you buy from the Kindle store.
Current release best-sellers are $10 each, with older content
ranging from $2.00-$6.00 depending on length, licensing costs and
age. For example, the 160-page Robert Silverberg novella "The World
Outside" which was published in 1971 cost me $1.60. Arthur C.
Clarke's 1979 "The Fountains Of Paradise" sells for $7.96. Major
newspapers such as the Wall Street Journal and the New York Times
cost $9-$14 per month"