Campo di Bocce is a tradition for my family! We always play outside and order drinks, which tends to make the last couple of games "interesting". I find the appetizers to actually be only okay, while I have had some really great pizza there- very flavorful and fresh tasting.
I too have found it odd that couples and families eat there and just observe bocce. I don't know that I would go there for JUST the food, the whole bocce ball atmosphere is what makes it such a neat place, in my opinion.
Also, the service is sometimes a little lacking. They tend to get pretty busy on summer nights and can forget to come check on you. Because of this, we always just order wine by the bottle so we can pour it ourselves :)