I thought this until my parents bought an expensive and fancy house. There are dozens of light switches spread all over the walls of the large living areas plus individual lamps and it's a chore to walk around and switch them all off every night or when you leave the house. I can see why automation is attractive for that, and I can see why home automation companies would target owners of fancy houses since they have the most money.

I blame the designers though. The fine grained control is completely unnecessary. If each room had only one circuit for all the lights in the room, controlled by switches at each doorway, that would also fix the problem.