Unless everyone in the office is working on the exact same part of the same project – where the office should be excited and alive – the office should be dead quiet, otherwise someone is being distracting.
Between email, IM, and phone, I have close virtual proximity to my co-workers. These are far lower-fidelity interruptions (and therefore more productive) than a shouting over the cubicle wall or hanging out next to my desk.
Many offices I’ve been in were too much about socializing around reality TV programs for my taste. The most productive offices I’ve been in? I had a desk in the back corner of an otherwise empty room. Made me think I should just work from home.