“What It Is, Is This”

What my passing thought is, is this: what bothers me is when I hear conversation like "what it is is this", I understand there’s a probable purpose in setting the stage so slow listeners can get the brain in gear, but it still makes me question the value of some introductory phrases.  When it comes right down to it, "alls you have to do is ...".  
Why not just get to the point, out of the gate to communicate?  (What I’m thinking of is a horse race.  I mean … think horse racing.)  
Economy of words.  What I’m driving at is … enough of my bad examples.  What I really think is that it’s okay (oops) – I listen patiently.