Gosh, I have a number of variable parts for my free site templates, that I just mix and match things based on what works well with each set of thumbnail pics and sponsor advertising, or else a steady rotation of the variable part with each new submission. So, I have never tracked how the "template variables" do as far as sales go. I do it this way just to keep the link list approvers happy and the keep things interesting for me and my surfers, while still having some parts of the site building process automated.