Microsoft Adcenter follows Google’s Lead in Optimizing Campaigns for “free.”

It seems everyone’s bending over backwards to optimize my pay-per-click campaigns for free these days. Google did it a couple of weeks ago, and now Microsoft Adcenter has chimed in. Can the PPC campaigns really offer good value to customers without conflict-of-interest becoming a problem? Or is it a “when all you have is a hammer, everything looks like a nail” issue?