[
Lists Home |
Date Index |
Thread Index
]
ari@cogsci.ed.ac.uk (K. Ari Krupnikov) writes:
>You've speculated on the relative "sales" of a money-costing paper
>edition and a free-as-in-beer online one of the same book. Do you have
>a speculation on wether you would have sold more of fewer copies of
>the original 1999 paper edition had an online one not been available?
I'd speculate that for the first few years we would have sold about the
same - losing some copies to the online edition, but also benefiting
from the boost that DocBook received from having free documentation.
Later, as the online edition updated and the paper edition remained the
same, I suspect that the availability of the updated online edition has
accelerated the normal decline in sales caused by aging of the book.
All speculation, backed by the occasional anecdote, I'm afraid.
|
