CVS vs Subversion
Tagging things in CVS
cvs -d user@server:/root co Something
..wait..
cd Something
cvs tag Tag_Name
..wait..
Tagging things in Subversion
svn cp http://server/root/Something http://server/root/tags/Tag_Name
The svn tag returns practically instantly. I'm still waiting for the CVS tag to finish. Of course, it's all software. But svn sucks slightly less.