From a tech support stand-point (Score 1)

I did tech support for an ISP for about 13 months. It was the low point of my career. However I did learn a lot about human nature and your 'average' computer users.

None of them want to learn - and none of them will learn. They'll use whatever they understand on the 1st try. If they don't understand it at first glance they give up.

These are the people who are confused by the word "Inbox," whose eyes cross when you ask if they know the difference between right-clicking and left-clicking, and yes these are the people who will never edit a single .ini file, much less a crontab file in their entire lives.