It very well may be. Ductless mini–split air conditioning systems can include multiple indoor units, and can service a pretty extensive area of a moderately sized home. They’re economical to install because they don’t require ductwork. Instead, the outdoor compressor supplies coolant to the indoor units directly through a refrigerant line. This makes installation less invasive, and also makes it possible to install air conditioning in rooms that would have been inaccessible for other types of systems.
Ductless split systems can also save you money on your monthly energy bills because each indoor unit has its own individual thermostat. That way you can choose to cool only the area that you inhabit at the moment and you don’t have to pay to cool the other empty rooms of your house.