I beg to differ. I'm using X11 and a number of *nix apps, mostly all are command line stuff. Its pretty handy to be able to use security auditing tools that are not available to the mac natively. You are right that most of them look like crap, but sometimes I just need an application that I wouldn't otherwise be able to get. Just my two cents.
You're lucky the install went so well. I recently add a bigger harddrive to my Ibook... man oh man, that was the most complicated upgrade I ever participated in.