That said, it looks like the premium features are $29/mo or $99/mo per user regardless if you self-host it or take advantage of their managed SaaS offering. It's somewhat bizarre - there's a lot of costs associated with managing this on-site but no discount for that. I presume they feel that extra overhead cost to the customer of self-hosting breaks even with the perceived or actual added security value of self-managed installations.
I might be reading it wrong, but that's how I see the pricing presented here and associated pages: https://about.gitlab.com/install/ce-or-ee/