Yeah, I never really understood the appliance modules. There aren't a whole lot of things you could do with those.
But the light modules are nice. I'm pretty lazy, so I like it
However, it's not just about being lazy. I have all my outside lights and 3 indoor lights on my x10 system. I've also got a timer that turns them on and off indivisually at certain times. This is nice for when I'm on vacation or whatever. It's also just cool to see all your lights turn on without you doing anything. Plus, you can dim any of them
So yeah, your idea seems good. I think you'll like the irman.
good luck!