"Should I upgrade the Mac I have or buy a new one?" It's a question that faces every one of us at some point, and it's not always easy to answer. In a lot of cases, owning a Mac can complicate this answer simply because the darned things are so long-lived. It's a lot easier to justify replacing some $500 Dell econobox after a few years, since it's probably got one foot in the grave by that point anyway, but I've known people who happily trundle along on Mac hardware that's nearly a decade old. In fact, I used to be one of those people; my first Mac was a 1998 PowerBook G3 that I bought used in 2004 and used until 2007.
I'm facing that "upgrade or buy new" question myself right now. Installing
