> when all I wanted was a black coffee.

This is incorrect at least at all the Starbucks I've been to in the past 5 years (ATL, LAX, San Diego, bay area). If you order just drip coffee, the cashier just fills it for you whilst billing. No waiting in line with the other folks who have different tastes from yours.

Also I agree with my sibling commenter; if all you need is black coffee McD is much better. But you might have to wait in line with "big mac and fries" folks to order their crap.