2010's 32-volume set will be its last. (Now I want to get one, to replace my old set!) Future versions will be digital only.
http://mediadecoder.blogs.nytimes.com/2012/03/13/after-244-years-encyclopaed... http://www.guardian.co.uk/books/2012/mar/13/encyclopedia-britannica-halts-pr...
Britannica president Jorge Cauz notes that their revenue from the online encyclopedia was already 15x that of the print version -- 15% of their total, compared to 1%. Most of their revenue for years has come from other targeted educational materials. As he says in the Guardian,
"Today our digital database is much larger than what we can fit in the print set. And it is up to date because we can revise it within minutes anytime we need to, and we do it many times each day."
SJ.