I will definitely post my numbers after the sale is over. To give you an idea, I've sold zero books all week. In the first two hours now of the ad, I've sold 11 books. Only twenty-something more hours to go! I'm might very well sell over a hundred books by tomorrow! That would be 200 dollars in profit, easily paying for the $120 ad. But more importantly, it will boost my rank and get my book out there. I've tried everything in the last few months and nothing has worked as effectively as Kindle Nation so far. I must say that Steve put a really nice ad together for me!