[just6979]

> but wiring 240V is not difficult.

Most homes don't have more than a few 240v circuits, and they are usually always dedicated to a single device. My house has 4: range, oven, drier, water heater, all with only a single outlet. The concept of wiring split-phase 240V is not difficult, but getting 4-conductor 12-gauge wiring run to a new location in an existing building is not exactly easy.

So, the power delivery type/format _isn't_ exotic, but the ability to use it in arbitrary locations in a [residential] building, compared to 120V being in every room (though perhaps not 120V/20A in every room)

[BizarroLand]

I have 4 a well, but in my case it's Range/oven, Dryer, Water heater, and a 240v outlet in my garage that would be great for either recharging an electric vehicle or powering high voltage tools like a welder/plasma cutter.

[ssl-3]

Sure, but wiring 240v is still not difficult -- even in the States. The physical act of wiring 240v is on par with that of wiring 120v.