@hagster - I wanted to ask the same question a few weeks ago... I was curious to know how many modules were sold by the members of this community so that I could get an idea if it is just us (me and Simon) who are doing so bad at selling our modules.
I have created some modules (one of which was released as Creation) because I needed them for personal use. At least I don't see how you can make profit selling your own modules if you take into account the time you spend on designing, prototyping, testing, creating a driver and so on. But I would love to hear how are others doing. Maybe they are selling their modules in quantities of hundreds or even more.