I'm running a temporary coffee cart right now with a dual La Marzocco setup: 3 group Linea and the Swift grinder. These two paired allow me to run the thing by myself. Anyway, I only can serve americanos off the cart simply for lack of space- nobody has missed the drip coffee. I explain the similarity between the americano and drip and the differences; people seem to like the education and my dedication to their enlightenment. I only serve espresso and single origin, no decaf. That has also worked to my favor (since I'm on a college campus).