The ones investing in 2k machines would not be using water that causes that kind of scaling, or they can easily have it descaled.

To others, if you are not familiar with espresso, avoid manual espresso machines - even with consistent top quality semi-auto machines good espresso is not easy, let alone adding even more play into it with a lever machine.

I recommend not getting a home espresso machine at all unless you are really into it. Moka pots, pour over, aeropress are all far far easier, much cheaper, and far less finicky. Save the espresso for a trip to your neighborhood cafe instead - they'll make it far better without the hassle.