My reaction — and I'm far from alone in this — to the $1.6 billion that Google is willing to pay for YouTube is, "They did what??!!!??" Sure, their valuation is a gazillion dollars. What's a billion or two here and there, right? But paying that kind of money reeks so strongly of the kind of insanity that prevailed in the 90's I have to come to the conclusion that Google is either A) much smarter than I am or B) the special "do-no-evil" Kool-Aid has finally taken full effect.
But using the clever Google Trends tool provided by our friends in Mountain View, this graph seems to explain it: