Some of our extensions that require additional testing in the field have a "beta" status and are being sold with a 50% discount. In return we expect a feedback about the extension's usability.
We can provide an extension for free for other developers if they need it to solve conflicts between their and ours extensions.
We don't provide discounts to students, non-commercial and non-profit-making organizations. Our extensions are supposed to be used to make the selling process easier. If your website sells anything, it earns enough money for you to buy an extension. If it doesn't — our extensions are useless for you.