Still, somewhere it pops up in web analytics as an outlier :)
Currently operating in my household: - A 2003 iMac G4 (iLamp) acting as a audio media server - A 2004 17" PowerBook G4 that I use for long-form writing because the keyboard is just. so. comfortable. - A 2008 iPhone 3G (not 3GS) with a remote dock that plays music in the library. - A 2011 MacBook Air that I carry around in my bag and use almost every day. (Though the battery life is down to two hours.) - A 2012 iPhone 4 I just replaced the battery in. It pumps out music to the neighborhood AM radio station in my closet. - And finally, a launch day 2007 iPhone, which I don't use regularly, but keep in my desk drawer and turn on every once in a while for kicks, and to make sure it still works. Man, that screen is very hard to look at now after becoming accustomed to retina displays.
On the other side of the coin, I can't seem to make an Airport last more than 18 months. Fortunately, there's a neverending supply of them for $5-$10 at Goodwill.
Naturally a more secure approach is to use a computer that already has a current TenFourFox or other browser on it, but this at least gives people with no other options a way out. Barely two days after offering it there were 50+ downloads/day already through the Downloader, so there must be some subpopulation of Power Macs not already updated where their owners are starting to notice this.