The more freebies a commercial product has, the more likely I am to buy it. If I have a choice between, say, Sharkey's wings with 30 free textures, and someone else's wings with two free textures, I am going to get Sharkey's. There are two reasons for this: one, it saves me time texturing items. Two, if a product has a lot of freebies for it, it usually means that it is good.

I also tend to buy items from people who have provided quality freebies, past or present.