Its often more nuanced than that, for example often cafes will get free machines and service if they agree to only use a particular brand of beans. Great for t

Its often more nuanced than that, for example often cafes will get free machines and service if they agree to only use a particular brand of beans. Great for the cafe owner, but typically its mediocre beans like vittoria or similar which are stale by the time they get to the cafe and a barista can only do so much with them. So that then dictates the quality of baristas you get, any baristas with pride in their work will try and find cafes with better quality ingredients, so you are left with mediocre baristas than can just pump out okish coffee.