List 1: A list of their affiliates
List 2: A list of leads in there sales funnel.
Which list would be more profitable? If you where to put the same amount of money into each list, which would come out making the most money overall? Spending money in gathering affiliates is a good way to ensure your products get a wider reach, but fresh leads in a sales funnel may buy from you again in the future (or buy nothing at all).
So which list would you spend the money on to get the most amount of profit, or would you say they are both just as valuable as the other?
Just trying to get some more efficiency going.