I'm at a small startup with ~8 people, which is currently working out of a 5000+ square-foot warehouse with dozens of spare office rooms along the side. And you know what? All the engineers work together in just one large room, so they can ask each other what's going on with some part of the code and things like that.
Well, yes, of course. 8 people can all work in one room without constant distraction. The question is, will everyone working in one large room still be ideal when your startup reaches 80 people?