That works great if you're in the room, but not so much if you're not home (or aren't even in the same room), or want to control landscape lighting and want it to automatically adapt to the seasons.
1. I have no trouble at all hitting the light switch when I enter a room, and hitting it again when I leave. Even when the power goes out for a few days, I still reflexively hit the switch.
2. I tried landscape lighting once. The local fawna chewed it to bits. I decided I didn't need it.
3. I don't need to control the lights when I'm not home.
4. I have seriously no need to light according to the seasons.
Sure, a more automated system would be great for disabled people. But I'm not disabled, and intend to lift my sorry heiny out of the chair as long as I am able to.
Replaces a phone in many cases.