Unlike a blog or podcast which require fresh content to keep readers engaged, a course can easily be repurposed and resold. If you weren't happy with your first stab at a course, you can update it and relaunch.
If you feel you've exhausted the content in your course and create a new one, you can also use your first course as a lead magnet. bonus, or part of the offer in selling your second, third, or fourth course.
