It's not that a company will just replace office 10 with office 11 for all 1,000 computers -- the hook is when office 10 is no longer available for purchase and companies expand their computer worksatations by, say, 10%. who do you think gets those shiny new computers? the mail room, or the top execs? and once no one else can read all those "important" office memos written in office 11, the managers will replace all office suites with office 11. Or they will listen to the "sage" advice of the M$ sales rep and replace them all at the start.
It's no longer planned obsolesence, it's forced obsolesence.
-t.