So Kubuntu = KDE and Ubuntu = Gnome and never the two shall switch, ever
That's not true. It's pretty easy to switch them around or install both (or neither, in the case of Ubuntu Server): 'apt-get install ubuntu-desktop' versus 'apt-get install kubuntu-desktop'. Ubuntu shares the same underlying package repository for all variants.
That's not true. It's pretty easy to switch them around or install both (or neither, in the case of Ubuntu Server): 'apt-get install ubuntu-desktop' versus 'apt-get install kubuntu-desktop'. Ubuntu shares the same underlying package repository for all variants.