Daniel Espinoza tells a wonderful, and extremely personal, story of how he decided it was time to sell the rights to his most popular commercial plugins. Daniel shares that he was making $4,000-$5,000 per month of recurring revenue on these products, and also what influenced him decide to sell them outright. I absolutely love stories like this, where the author is completely open and transparent, even on such personal matters. If you want to learn more from Daniel, and you should, you can still sign up to hear his recent appearance on WP Sessions.