I would assume 60% or so is espresso - if that is correct (or even close) the machines you have identified are too small. Generally the espresso machines will have some type of estimated number of cups per day rating... that will give you a better idea of how much they are rated for. The Rocket is a consumer machine... nice but I would never put it in a heavy commercial environment. A friend runs a VERY SMALL coffee shop and runs the Rocket Boxer... but he is only doing less than 50 shots per day. What is your budget?