If they're permitted, and local wood is available for purchase, we have them. Otherwise we do without. (We don't like collecting dead-fall - rather leave it for the animals.) We'd rather have a fire than not, regardless of the temperature, for the smell and atmosphere as well as cooking, but can do without if that's the circumstances we're in.
We went backpacking recently, and didn't plan to make fires (brought the backpacking stove instead). It just happened that a group of young (college age) guys were backpacking the same trail and staying at the same over-night spots as us, made a fire every day, and didn't mind sharing. It was nice to not have to use the stove and made the kids happy, but my pack didn't get as much lighter as it should have (still had to carry the fuel!).