Why use the terminal in daily non-programming life Disclaimer: I'm a Windows boy awaiting his first mac. I never bothered learning/using command-line interfaces.

I've been looking at the Terminal Tips and Tricks topic and I don't see how any of those commands would be faster than using the GUI.

For example, someone explained how to search with spotlight, using the terminal. How is this better than just using spotlight?

Could you guys give some real-life examples of situations where you really benefited from your terminal knowledge ?
Many people coming over to Mac OS X come from a Unix-ish environment and prefer terminals, so for them there are command line interfaces to many things. If you prefer to stick with the GUI, no problem.