I wear my instructional designer hat while I compose this post. In Alice’s topic post, the thread questions rising costs of higher education; from a design standpoint, if courses are designed from the start to be dual-purpose, in that the content/materials can be used for credit or “free” delivery, then how much additional cost is borne by universities to offer “free” courses? Certainly there is overhead in hosting and infrastructure, and in oversight and administration of the courses; but early in the design stages, if the course content is designed to serve both audiences, there would be no need to develop separate content for the “free” courses.
The value, then, of being an enrolled student vs. a “free” student is access to the university’s other resources, the credit towards an accredited degree, and more access to instructors.