On one hand, additional colors create revenue for the server while giving players more stylistic options. On the other hand, I (and I'm sure most other players) always prefer content-based updates as opposed to aesthetic ones (which have been frequent as of late). Both types of updates are meaningful, but it's ultimately up to the administration to prioritize what's best for the server.
I'd like to see more colors down the road, but right now? I think we have plenty enough. Let them focus on giving us players new content. I disagree with this suggestion.