Maybe it's worth the price. Did anybody used both of them and is willing to tell us how they compare?
I don't know exactly how GitHub Enterprise and the GitLab Community Edition compare in that regard but aspects such as usability, maintainability and updatability are much more important than saving $21 per user per month.
So, yes if your company has a lot fewer than 10 Git users GitLab probably is the best option. In every other case, it depends and the pricing advantage becomes less pronounced.
But for a petty price, Gitlab comes with a Kanban board, a release management system, a (free) CI tool, and all of the newer features I don't have experience with ( the whole Kubernetes integration lately? ). (So no need for paid travis, Asana, Jira, ....).
Adding to that that most cloud providers offer ready to use images with Gitlab installed, I understand what it becomes such a 'default choice' for new installs lately.
Our biggest customer installation had a serious problem in 2015 and we addressed it. We have customers switching from GHE because of the reliability of GitLab self hosted. There are problems on GitLab.com, we made solving that harder because we insist on running the same code our customers are running, so we'll never have a repeat of 2015.
We would love to get in touch to discuss any performance problems you're still having.
If that's the name of your employer, bear in mind that you can get into massive hot water for using it to endorse third-party products without authorization.
I was trying to say that, in my experience, Gitlab has become the defacto VCS tool for new/small companies that want something self-hosted.
What's interesting is, I do see the trend slightly change the last year, as Gitlab becomes heavier and people switching to gogs.
In the end there is probably enough space for all depending on your needs.