I couldn't imagine going to a gym and having to wait to use machines or sharing them. I love being able to train when I want, load my weights, leave them on there for next time. Have as many rests as I want, stay using my rack as long as I want, swap between machines without worrying about someone stealing one.
The only thing appealing to me about a commercial gym is the variety of machines.
I just can't be arsed going to the gym. It's too hard to work to a particular routine in a reasonable amount of time. Always gotta wait for equipment, always weirdos in the changerooms. I just prefer to do it at home, whether on my own or with a mate.
It's great when I'm on my own, I don't need to get a set of clothes dirty... just work out in my jocks. Not a pretty sight.