Microsoft has announced that they will no longer be servicing original Xbox models no longer covered by warranty. If the system is still covered by warranty, which is very unlikely at this point, Microsoft will still honour it but will either direct you to a third party repair centre or cajole you into upgrading to a 360.

The original Xbox was an excellent console, unlike its RRoD afflicted younger brother. Microsoft was quick to drop software support for the first big green, which ended in 2005. This in comparison to Sony who chose to continue supporting the Playstation 2, which is still in production as a low cost alternative and still has software being developed for it. The 360 is backwards compatible with most original Xbox titles.


Source: The Register