Why outsource pay per click management?

Our clients outsource to us for any of the following reasons:

We save up to 40% on bid prices using state-of-the-art PPC bid management tools
Lack of time to properly implement and manage own pay per click campaigns
Poor click-through rates (CTR) or lack of impressions/clicks
The costs of outsourcing pay per click management is less than the savings we make on bid prices