I run Telepost on Google Cloud, it costs me $70/mo - http://i.ncrp.co/1H3g0k2V402e.

I also pay for the certificate, $100/year. Let's Encrypt is also used, but for custom domains.

But that's not the point. I don't explain price with infrastructure costs but rather explain why I can't be like Netflix and ask $10/mo. That was a mistake on my part to mention it at all.