Espresso, cappucinno, latte macchiato, decaf,... Coffee belongs to the everyday life. And there are a lot of people who first need a cup of coffee before their day can start. So it's rather normal this black gold got its own extension.
Your company makes coffee? You work in a coffee house? You sell coffee machines? You provide different kinds of coffee to companies or you just want to tell everybody where they can drink the best coffee ever? Register your name under .coffee.