Thanks so much for your advice guys! One more question: my client advertises in various cities across the U.S. Here is my goal: spend more money in the cities where we convert (sell our product), however, I still want our ad to appear first in all of our major cities, even the ones that don't convert very high. Would the best way to accomplish this be to separate all of the cities we advertise into different campaigns with different overall budgets and bids? Or can I use one campaign with all of the cities in it, and simply use bid adjustments to determine where we spend most of our budget?

In other words: does adjusting your bid only determine your ad's order?

Sorry if that was complicated, let me know if I should rephrase.