I have been seriously impressed by geckoboard, but do not have anything serious enough to use it on and so would be unlikely to pay much for it (for the time being).<p>One other thing is that if I was using for something serious, I may be worried by geckoboard having access to some of the more sensitive data. I think this could be a big deterent for some.<p>Overall, you have an absolutely kick-ass product, I suspect that if you dropped the prices a fair bit then even the most casual users would sign up, which should result in greater revenue for you.