You are one of those people who doesn't get that that is absolutely not appealing to 95% of the population. It might be a fun tinkering project and if you enjoy that more power to you but what those 95% of people would do is at most move that light switch to a more convenient part of the room. I am a big fan of automating things in general in the context of my PC and it is not even appealing to me (mainly because hardware projects do not appeal to me and I don't like to open my home up to security issues), so you are talking about an appeal to a small part even of the geekier part of the population.