I'm considering setting up affiliate marketing (probably with someone like ShareASale) for my vertical market app. (It's installed Windows S/W for churches and charities to track their donors and donations and issue receipts.) My usual price initial purchase price is $80, though there's a free feature-limited Lite version as well.
My app is already quite successful (I'm in my 5th year full time on it), with some very good organic search results and getting some value from AdWords as well.
So my question is, have others with similar sized vertical markets really found that the investment of time and effort (not to mention commission costs etc.) are really worth it, for affiliate marketing? Overall the impression I read from most sites is that for most who have tried it, it has not been worth it. But I'm open to hear otherwise.