I'm unsure of what your purpose is with this post - if you want to compete because you think it is a good business - costs << price - go for it.
Also, I am genuinely curious to know more about the OP's costs, which is why I asked them for more info.
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.