&quot;One benefit of the udemy over the pluralsight model is that years later I still have access to the course and can revisit it&quot;<p>This assumes that Udemy still exists at that time.  The Udemy mobile apps allow offline caching, but the Udemy site does not allow you to download videos to store them permanently on your computer.  An open source tool to help users do this themselves was served a DMCA notice: <a href="https:&#x2F;&#x2F;github.com&#x2F;github&#x2F;dmca&#x2F;blob&#x2F;master&#x2F;2015-08-12-Udemy.md" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;github&#x2F;dmca&#x2F;blob&#x2F;master&#x2F;2015-08-12-Udemy....</a>