My amiga (060+Mediator+voddo3+sb128 etc..) is the only desktop I have left, I use it to play my mp3s daily, and sometimes use amiVNC or amtelnet to connect into servers. It is well suited to the job it does but I mainly just keep it for nostalgia.
I've moved away from desktops to just having a laptop and some small servers hidden away to keep my data / processes on.