How much time did you spend creating the layer styles before you started selling them? It sounds like you put a lot of effort into it and I'm wondering if you considered yourself done once you launched the site?
Several months. I probably spent too much time on the product, and not enough on the site. I originally launched with just the wood and marble styles, the metal and glass ones came later. I'm still not done, I have a bunch of other style packs in development.