OK, so I am wondering if this is what I need.
I have a WP blog, and then my wife wanted one, so I installed it for her. Then her friend wanted one, so I installed a new one. Then her other friend wanted one, and I installed a new one. Then my friend wanted one, so I installed one for her. Now another friend wants one, and I'm going to install one for him.
So that is 6 seperate installs of WP. Space is not a problem. But it is possible that a few more of my friends will want one. I could install them seperately. But I shudder at the thought of a WP upgrade coming out and having to upgrade 6 or 8 or 10 sites individually.
So what I want to know, should I be using WordPress MU?