This is interesting to me, from my end. I base contract prices on traffic mostly, when placing brands in tour media. For DVD placement I would need to look at projected sales of upcoming titles. Ideally, I would have a product placed prominently in free tour media, then expect robust sales of the complete production sampled.

I have a hard time making it clear to suppliers (placers of product) that there is no guarantee on results. Just like when CocaCola places their brand in an Adam Sandler movie, either half a million or a 40 million might see it. The price is the same.

Paul