A co-worker and I went out to lunch.  He wanted a quick hamburger and as we passed a Burger-King I asked him his beef with BK.  He indicated the value menu of McDonald’s was superior and that he could get a double cheeseburger for 99 cents versus 1.59 at BK.  This made sense until the 10 minute mark passed in his Diesel Passat and we’d traveled another 5 miles.  After some quick math:  Cost to save 59 cents = (10 extra miles) (2.86/Gal. diesel)/(27 mpg City) = 1.048.  Not to mention the lost time and inferior preparation.  No wonder he’s moving to marketing.