One thing I have noticed about Mac users is that if they're not into state of the art gaming or digital graphics/video they simply don't feel the need to constantly upgrade.
Plenty of Ram and a decent sized hard disc and they happily potter along for years without any of the twitching associated with PC ownership.
I was reading the other day an article where a magazine columnist had a heart attack in New York. He discovered he was attached to complex monitoring system run by a ten year old Mac - safety critical? - yes. Would the staff dream of changing the box? - never!
Here at the Towers we're indebted to all those who provide expert knowledge and opinion on this forum but there is always an alternative view. Macs seem perfect for people who want a computer but aren't interested in them in their own right. Going on the daily postbag we're submerged under here at the Towers it feels like a big majority of people who've ended up with PC's are actually in that group.
Rob