I think it speaks volumes to the downward trend of Apple these days.
Apple mags will just be the first to go. The rest will eventually follow.
"On July 10, 2013 owner IDG announced that the magazine would cease its 30-year print run. The August 2013 issue was the last printed of PC World magazine, future issues will be digital-only."
(Once) famous earlier examples:
http://en.m.wikipedia.org/wiki/Dr_Dobbs: "In January 2009 Jonathan Erickson, the editor-in-chief, announced the magazine would become a section of InformationWeek called Dr Dobb's Report. and a Web site."
http://en.m.wikipedia.org/wiki/Byte_(magazine): "Print publication ceased in 1998 and online publication in 2013"