We're facing the same problem at my company, I heavily pushed towards switching to GitLab and am currently overseeing the process. While we can probably make due with CE, there are a few features that only the 10 to 15 developers in our 300+ employee company would actually use. I don't think that in the foreseeable future the price point of Ultimate will make it viable for us to go that route. Having every employee being able to use GitLab is essential to my idea of how GitLab can be of use to the company, but unless free guest users will also come at least to Gold tier, I think we will have to live with the limitation of CE rather than becoming paying customers. (Please don't get me wrong, I definitely value the product a lot, but I'm not making these decisions alone and I'm merely stating what I know to be the facts for our company. As a fan and developer who would like to use some advanced features I'm hoping that free guest users will come to the other tiers as well.)