Social Dilemma - Do You Keep Your Christmas Lights on All The Time

I was chatting with some neighbors yesterday and we had a friendly disagreement about this.  Do you leave your Christmas lights on all the time or do you turn them off when you're not home.  I'm a big fan of the glow of Christmas lights.  I have the outside ones on a timer so they stay on all night long (which I love), and I love having the inside ones on too, so that even when we're not home, people can see the Christmas tree all lit up in the house.   Some neighbors think having the outside lights on past 11 could keep some people up, but the lights are directed to my house not others so I don't think that's a problem and I've never had a neighbor complain about it. And on the inside, they said it could be a fire hazard, but I have an artificial tree with the little lights that don't get hot.  Also, we always leave lights on for the pups and kitty anyway, so why not the Christmas lights.   They said if no one is there to enjoy it, why leave them on, and outside lights should go out at 11pm.  I say too many rules.  So what do you think?  Christmas lights all the time, or off when you're not at home and outside off by 11?