This is hackernews, do the math for the love of god.

There are good business and technical reasons to choose a public cloud.

There are good business and technical reasons to choose a private cloud.

There are good business and technical reasons to do something in-between or hybrid.

The endless "public cloud is a ripoff" or "private clouds are impossible" is just a circular discussion past each other. Saying to only use one or another is textbook cargo-culting.