The most expensive coffee maker as of 2015 is the Roasting Plant Java Bot, which is a machine that roasts, grinds and brews beans for every cup of coffee ordered. It costs $1 million and is a commercial coffee maker.
The most expensive automatic espresso machine comes from Concordia Coffee Systems, whose models range from $10 to $40,000. Its $10,000 commercial model is said to be the fastest espresso maker in the world. If drip coffee is preferred, the $300 Technivorm Moccamaster KBT 741 is well reviewed, although the $250 Breville YouBrew is considered quite sophisticated for an automatic coffee maker.