Basically what I feel about stability of distributions I am considering is:
Debian Stable (+backports) > Ubuntu (+backports) > Debian Testing > Debian Unstable
Read more thoughts here
So basic ga bottom line is I don't think using the latest software is just about mindset. It might have considerable advantages at times. And you never know what feature in the new version you might fall in love with (ex. firefox non-intrusive way of prompting whether you want to save the pasword or possible future thunderbird tray icon). And yeah I could always compile from the source but then of good use would Synaptic be and the entire debian package management be :D.