I am surprised this tool is so popular.
It has some great features. But, IMO, it's overpriced, difficult to use, slow, and breaks often.
It seems to me that much of what can be done in Captivate can be done for less cost (often free), and often better with other tools. Some of those tools would include: OpenShot, Screencast-O-Matic, H5P, and Moodle with the right plugins.