Ask HN: ICANN charges only 18¢ per domain name, why am I paying $10?

Purchasing a new domain name is second nature of a techie. But in this ear of disruption it's little odd that we didn't saw any major procedural changes in this field. Especially .com registry, which is owned and monopolized by Verisign.

Which things/laws are preventing us from solving this problem? In btw, kudos to Let's Encrypt for offering free SSL.