To properly create an online course requires a great deal of time. All the materials must be reviewed and posted. In addition, the links must be created and materials organized. The good part is once the course is created, it is there. All it requires is some basic maintenance. Most platforms allow you to copy over a class. This is excellent. Copy over, check for accuracy and then add/update materials. If you are fortunate enough to teach the same online class multiple times, this get easier and easier and the student enjoys a robust online class with quality resources! To summarize, more time in the initial build, much easier to maintain, fine tine, and grow tha class once it has been developed!