I always have two functional computers. One for general use and internet access and the other for games and media. The Green Machine is used for games and watching DVDs, no internet access. The 900 is used for general tasks. A couple of months ago both of my PCs died. The 900 replaced one of them, the Green was just rebuilt.
Since those two computers where Pentium 4's from 2004, it was time to be up with the current technology.