I think there is a steep learning curve with home automation. Often instructions are written for people that are familiar with it and that is frustrating to us newbies. I used to do a lot of system administration and was always very annoyed when I ran into a problem and the error message said "Please contact your system administrator." That was me and I didn't know the answer!
I'm trying to get my Centralite lighting system setup to talk to my ISY and the instructions are definitely written for someone that already has experience with the system (RS232 serial connection, yep). I've just discovered that when the previous home owner finished the basement, they put a different Centralite system in the basement. Doh. Now my main floor is one system that is hard wired (Centralite Elegance) and the basement is another system based on Zigbee (Centralite Jetstream). I'm messing with z-wave so I think I'm going to end up needing to connect two lighting systems into my ISY. And, I end up with zigbee and z-wave in the same house which I read is doable. blah blah blah. That's a long way of saying things get complicated fast and I'm a newbie.
I think I fall into the camp of wanting to automate things but not wanting to just do things on my phone that I can already do (e.g. I don't need to turn the lights on from my phone but I may want the entry light to turn on automatically when someone rings the doorbell).
The more I play around with it, the more ideas I get on how to use it. I started out with just a couple "nice to have" things but my list is getting a bit longer. I started with a doorbell, water sensors, and freezer temperature. Now I'm finding other ideas that will be neat.