I understand you just through out a number but you're at least an order of magnitude off. This is an article which is about 7 years old. I can guarantee you the prices have not lowered since then.
https://arstechnica.com/tech-policy/2010/03/fiber-its-not-al...
If you remove all the regulatory overhead last mile is cheap, something on an order of $100 per customer in urban areas.