Or are you finding you're not even getting to them because you've got so much else on your plate?
Setting up campaigns is one thing, but then you've got to test, track and improve them. This process never really ends!
As well as being time-consuming, it can also be mind-numbingly boring. Perhaps that's why it can get shoved to the bottom of the 'to do' list while we get other important tasks out of the way.
Well-structured PPC campaigns can make you a lot of money, but can you afford to waste a ton of time trying to make it happen?