We have multiple client sites (completely static) we're hosting on $5 Droplets (+GST+Backups).
We plan to deploy more such sites and keeping them on Gh-pages (auto build using GH-Actions) would reduce a lot of headaches for us.
Right now we've had all private repos scattered over everyones individual accounts and managing this has been a pain. So it would be nice if there is a single place to keep it all (thanks to free private repos for teams, we'll be migrating all of it to one place soon enough).
With 3 team members, $12/month for all the extra goodies seems reasonable.
We initially used BitBucket but switched to GitHub as we prefer it's UI/UX/Familiarity + a single place to manage both work/open source issues/prs etc is definitely easier.
Oh and gotta need that repo/contributor insight to compete with team mates :P