Is the Cost Per Click the Most Important Part?

Cost per click is not the important part. The important part is almost like maybe the conversion. In terms of profitability, what it's here and there, it depends on each how they calculate their budget to see. For a well-established brand or for an old product such as coffee, this may not be a good idea at all. But when you're considering launching a new product to an existing brand, that would be that place that would be most valuable.