Our house just gained another computer, my in-laws' old Blueberry coloured iMac DV, circa 2000. That brings the total number of currently fuctioning machines in the house up to five, which is one more than the people who live here.
Yet the old iMac got a lot of use today: after putting in 512 MB of RAM, I wiped the disk and installed Mac OS X "Tiger," as well as Mac OS 9 in "Classic" guise, and my two daughters (ages 6 and 8) went to town playing games and checking out childrens' websites. We inherited it because my wife's parents replaced the six-year-old machine with its much younger brother, an Intel-based flat panel 17" iMac. The old one joins my MacBook, my wife's iBook G4, and my eMac downstairs, as well as a few shelved Macs that still work but aren't in use: a Power Mac G3/266, a Power Mac 7100, and a PowerBook 1400.
Yup, it's a geek house: my dad has at least seven computers in the other half of the duplex too.