[chrischen]

Since it’s a bidding system, someone’s getting good returns on these ads and I’d speculate it’s just a small handful of people who actually hit a sweet spot, with the rest filled by people doing temporary campaigns or testing out campaigns.

[T2_t2]

Margin and volume are the key to advertising. Coca cola needs to sell a lot of extra coke to make a return, and they do.

At the other end, car companies. You only need to move a tiny fraction of people left or right on a $20K purchase to justify a hell of a lot of ads. 1,000 car buyers changing from a Toyota to a Hyundai is a massive return.