Thanks. What kinds of niceties? I spent awhile looking at it and the other RH distros, and didn't come across anything saying CentOS was a server OS (not that I doubt you, I just would be interested in more details if you happen to know them).
Packages are often kept at stable (but old) versions for a very long time. This is good for servers, but bad for users. Same goes for the kernel - again, good for servers, but not so much for new-ish hardware. In general its a very conservative distro.
As far as it being a server OS, well..
'In July 2010, CentOS overtook Debian to become the most popular Linux distribution for web servers, with almost 30% of all Linux web servers using it.[15] (Debian retook the lead in January 2012.)'
