We should not be ashamed of the command line and it's often the easiest way of doing something.
The Linux command line is very powerful and while I don't believe we should be giving the impression that real users only use the command line we shouldn't shy away from it either.
In most cases the command line way of doing something will work the same across all supported versions of Ubuntu irrespective of the desktop installed (Unity, Gnome Classic, KDE, XFCE, LXDE) and will also work on the Server release. It also the case that it probably doesn't matter if the questioner is using 12.04, 12.10 or 13.04; the answer will probably still be valid when we are running 14.10 or even later.
In contrast the same task on two different versions / revisions may be significantly different using the GUI.
Consider for example installing some software using the GUI on Lubuntu 12.04 or Ubuntu 13.04. The exact steps are different in Lubuntu you find Software Center in the menu while in Ubuntu you search in the dash for it.
sudo apt-get install some_package
Works everywhere. It's good to give a GUI method too when it's easy to do it via the GUI however.