I set a business up to use Netlify to host a handful of legacy static sites (some with build processes, some without), because it was easier to do than S3 + Cloudfront.
They have a GitHub organisation account so looks like for the occasional updates I'll have to manually deploy.
If it was $5 or $10/month I doubt we'd give upgrading a second thought, but at this price point alternatives like build locally and SFTP to cheap shared hosting are worth the extra effort.