Whilst I am not one for knocking home automation, even where the justification for utilising it might only be 'because I can', but do you see any real benefit in controlling the lights via a computer?
Personally, I see very little.
For me, the most compelling reason would be the ability to reset the lighting after someone has walked into the room to ask you something, switched on the main lights, and then left without turning them off again. However, even I'm not that much of a couch potato that I can't shift my corpulent backside to switch it off manually at the wall.
However, I'd not knock anyone for doing it if they want to.
EDIT: I'd just add that for it to work well, you'd need a really good controller. But I can imagine you sat there, and take time finding the remote*, switching to the lighting screen (I'm assuming one of those nifty touchscreen graphical jobs, or a tablet or smartphone app), find the right button, press it, realise it's the wrong one, ... In the meantime, your <significant other> has got up and flicked the switch.
* Which you realise was left at the other side of the room, potentially further away than the light switch.