I think you've made a great choice if you want to learn more about Linux and have fun in the process. When people ask me why I chose Vector I usually say "Because it's easy but not too easy". By that I mean you can get a basic system up and running very quickly and there are many applications in the reps, but sooner or later you'll need to stray outside the official repositories and maybe even (gasp) compile the odd program or two. And while there are lots of GUI configuration tools available it's sometimes just quicker and easier to edit text configuration files directly. In the process you'll learn a lot about Linux in general.
So, welcome on board and fire away with those questions, the people on this forum are great and have got me and others out of many tight corners.
The best answer to "why VL" I've read so far! Correct in every aspect!