>Decent Espresso showed us that boiler machines for home use are a dead end I don't think this is true. I think what you may mean is that SINGLE boiler machine

>Decent Espresso showed us that boiler machines for home use are a dead end I don't think this is true. I think what you may mean is that SINGLE boiler machines are not great for people who want to make drinks that involve steaming. Many people make only espresso, and don't use milk at all. A single boiler is going to be fine for them. Many people who like milk drinks use double-boiler machines, which work beautifully (e.g., my Rocket R58).