[CentOS] Fasttrack Repo on CentOS 4

A quick question on the fasttrack repo which is now
up to date with upstream. Why is the fasttrack repo not
in the main CentOS-Base.repo file but contrib which has never
had anything is included in the main CentOS-Base.repo file?

The goal of CentOS is to be binary-compatible with upstream so
fasttrack is "more important" in this regard than contrib. 
Upsteam ships with the main channels as well as fasttrack.

As CentOS includes the repos in one repo file rather than having 
separate files, this tradition should be considered for fasttrack
as well.

Regards,
Vandaman.