> Even just the git has many releases during Debian Stable...

It just so happens the software you mentioned, git, is in stable backports, so it is updated frequently. Regardless, I've been on Debian stable since 2007, and running "bleeding edge" stuff is trivial, depending on your desired workflow. (For example, I just install Debian testing packages in a schroot.) I used to bounce from distribution to distribution in the old days (Red Hat, Mandrake, Slackware, Gentoo, etc.) but once I found Debian Stable I could concentrate on getting work done.