It's all in how the end user actually uses the OS, iago. Slackware and Ubuntu use the same linux kernels, and have the same CLI that can be used. Ubuntu offers a Linux distribution that's easy to use, easy to setup, and user friendly. Slackware offers a distribution that takes a lot of work to get many of the basic 'laptopy' things working.
My girlfriend [average (below??) user] has no problem starting my Ubuntu laptop, entering the passwords, and getting to the desktop. From there my laptop auto-connects to my wireless and she can browse away. On the other hand, if I want to use that same setup to do many of the things that Ubuntu *hides*, I can. Such as compiling from source, editing configurations, setting up apache, web, basically anything a Slackware user can do.
It's all in how you plan on using your setup. Ubuntu has a great community (#ubuntu,#ubuntu-offtopic @ freenode), forums, and plenty of people willing to help you.. even with those non-windows like tasks.