I have said, "Marketing is not advertising" so many times that I can't begin to tell you how many (usually with a little frustrated indignance in my voice).
Seth Godin just said it betterthan I ever could – and he embellishes his comments witha poignant clipfrom AMC's Golden Globe-winning TV show,Mad Men. What we see in the clip looks all sexy and cool, but is just advertising – taking something that exists and promoting it.
All the behind the scenes stuff involving the4Ps/7Ps– whichever you subscribe to – (and related development) often gets overlooked – but that is the lion's share of marketing.