Cuz It Works

Mostly, there's a buncha smart people running the businesses that run the world.  And mostly, these smart people make smart decisions, and (again, mostly) they decide to spend something like half a trillion dollars every year on advertising.  We think that's about right, but nobody's real sure anymore because the outfits doing the spending stopped talking about it openly several years ago, and the outfits that try to keep track of it have come to understand that the information is pretty valuable, so if you wanna know about such things, you get to pay for it (it's all about "The Analytics", dontcha know).  So the rest of us - well, we're just kinda shooting in the dark.

Anyway, smart people spend a fuckload of money on advertising - because it works.