The vast majority of Linux installations don’t have a UI, they’re headless, and it was the same with Sun. I.E. the UI is irrelevant to the success or failure of Linux and Sun.
Linux took over the world because any licensing model that requires a per CPU license simply can’t work in a massively scalable situation like server farms and cloud.
Linux took over the world because any licensing model that requires a per CPU license simply can’t work in a massively scalable situation like server farms and cloud.