Can you give the link to your next post. Because this post still not conviced me.
chinh an

CDN can handle large traffic spikes and bursts — by offloading and caching static content on a CDN, you can accommodate a larger number of simultaneous users with your existing infrastructure. For above use case (a read-heavy news website), CDN has helped us with improved performances, also we could scale down the existing infrastructure for web servers and managed to save some $$$ from our monthly bill as well.

This is few years old post now, and sorry didn’t get a chance to post about comparing “CDN vs a static nginx server “ — may be if you’re not convinced how about this approach, how about you post an article on this topic so we can learn from each other :)