netmeg - 3:13 pm on Nov 8, 2005 (gmt 0)
Actually, I just tried this for the first time for one of my accounts about two weeks ago. They have a service that is national, but with some particular hooks for various regions of the country, so we wanted to advertise those hooks where they were applicable. We started off with higher CPCs, but within a week, we were seeing much LOWER CPCs, and much HIGHER conversion rates than our national campaigns. So we're sold, and will continue and expand the regionals.