New display type

I was thinking what could I do for my publishers so they always have a paying advertisement being displayed.
So I thought of this idea
In the event that there is no ad inventory for a publisher CPA advertisements would display. The only difference is the publisher would still receive a payment for each click of 0.01 – 0.05 cents. But if they make a sale on the CPA they will receive a bonus of they total commission received from the click. This can be $1.00 – $20.00.
So what do you think about that?

See original post by FCM