what's wrong with a GUI?

This is a related topic to my source control post. Plus I've been 
playing with Linux. The two together have made me wonder:

Why are programmers afraid of GUIs? Linux especially. In some respects 
the Linux GUI is better than windows. But to install a program you have 
to go to the command line 9 times out of 10. Why? This is silly. People 
think Linux can compete with Windows? Not for 95% of people in the 
world. How many typical computer users even know how to get the command 
line in Windows?

I'm sure this will change, but I think there is an underlying ethos in 
Linux that won't let developers give up that command line. There seems 
to be a feeling that if you don't use the command line you aren't a real 
programmer or something.

-- Justin