That obviously ignores inflation. Microsoft's peak of $619 billion in 1999 would be about $851 billion in 2012 dollars [1]. As such the word <i>valuable</i> is out of place there.<p>[1] <a href="http://www.bls.gov/data/inflation_calculator.htm" rel="nofollow">http://www.bls.gov/data/inflation_calculator.htm</a>