Even at it's most basic level, scene lighting can be utilised to give rooms character and to allow for light control (from multiple locations) in hallways and open plan homes that is simply unattainable in any other way.
Outdoor lighting is also very receptive to scene control and the ability to programme it to operate at specific times is ideal.
Low energy lights present no problem (although dimming options are more restricted). Indeed, current moves towards more energy efficient lighting are having some impact on this area of automation.
But is it green?