It's important to have a quiet place as well.
As a manager, some conversations have to be held in private. Would you hold an interview in the middle of a team work area? Unlikely. Even if you're not a manager, sometimes you need peace and quiet. Maybe you have to schedule a doctor's appointment, maybe you need to rant and rail for a while.
Despite the open plan, not everyone needs to know everything. So make sure your open plan has a quiet place.