Starbucks doesn't sell coffee. They sell coffee-flavored milkshakes.
Actually, they do sell coffee. Not my fault if you/people you know/the general public don't order "coffee" when they enter a coffee shop. Do they have a ton of other crap on the menu? Absolutely, but your statement is asinine. I drink my coffee black. I get it from wherever is most convenient when I want it. If that means Starbucks, I use Starbucks. And when I ask for a large black coffee, that's what they give me. Maybe you should stop looking at the frappucinos and lattes.