What is the benefit of moving to Gitlab from Bitbucket (or Github) for private repos? Same feature set, Gitlab cost more per user and on top of all you have to run your own server? Am I missing something here?
I'll leave the marketing talk to less biased people here, but do note that: - you can use GitLab.com for free: unlimited public and private repositories, unlimited collaborators, free hosting of your Docker images, free hosting of your static site with any static site generator and free CI / CD - GitLab CE is fully open source (MIT Expat). You can easily install it anywhere you want.
It seems like that is the main selling point. However, I think that most of us don't want the extra weight of managing yet another tool. Thus why many of us use GitHub to begin with and not something else...