The Publisher Defendants also feared that other competitive advantages they held as a result of years of investments in their
print book businesses would
erode and, eventually, become irrelevant, as e-
book sales continued to grow.
While the publishers who treat ebooks as
printed books make most of their
sales to the public and are rightfully concerned that school and library
sales will
erode the consumer
sales that they need to survive, the publishers who have developed and champion the unlimited simultaneous use with perpetual access model sell only to or principally to school libraries.