I mostly drink half calf that I make myself, but I'm a bit of a snob about how coffee should taste. Too much watery coffee is served out there in the world. Most restaurants will charge $3.50 or more for a cup of objectively bad coffee (ok, it's subjectively bad, but I find it appalling, regardless). I stopped ordering after dinner coffee a long time ago.
Diners tend to be better about this, although diner coffee, itself, is generally a particular flavor of coffee, which generally doesn't taste very strong. That's ok, as long as I know what I'm getting.
Coffee shops generally do a good job, but overcharge for a cup of drip coffee (they all overcharge--we're paying for the labor and the rent, not the coffee; I'm ok with it, as long as the coffee is worth drinking).