[ken]

Do you have an old computer at home, and an internet connection? You can always host it yourself.

The electricity used may not be cheaper than paying someone else a few bucks to host it from their data center.

[ganstyles]

I don't think this would work. How would one get around the ISP's NAT to expose your address to the wider internet? At least, without potentially paying the ISP extra or going through a (relatively) lot of trouble to monitor/manage where your DNS is pointing. If I am way off base on this, please elucidate.

[jgalentine007]

Dynamic DNS has been a thing for ages and it is trivial to PAT on most any firewall you may have hooked up to a modem in bridge mode.

[StavrosK]

Not all ISPs have NATs, I guess.

[BenjiWiebe]

In the US, most don't have NATs, in my experience.

[riazrizvi]

There's a big community around self-hosting at reddit on /r/selfhosted. The sidebar has links to specifically hosting your own website.