Yes, our yard is fenced. We don't own our house, but I will only rent houses with fenced yards.
This is just me, but I would never let my dogs out off-leash even though Adele and Vallis are pretty reliable (Marta is not) just because of all the potential dangers. A few years ago we lived in a house without a fenced in yard and it was awful taking the dogs out in all kinds of weather.
It's so much easier to just open the door for them! With 3 dogs, I wouldn't have it any other way. :) If we only had one dog it wouldn't matter quite as much because you'd only have to worry about taking one out...but with more than that it gets hard taking them all out and making sure they do their business.