Eh, I like our open office workspace. Our desks are large, we each get drawers, and if anyone needs to make a call, they go to a breakout room. Navigating cubicles sucks, and separate offices aren't great either.

That said, I'm a developer, so inviting someone over to my desk to look at something is quite common. We also frequently have impromptu 5-min meetings between rows, and we arrange people so those who will likely need those quick meetings are near each other.

It certainly wouldn't make sense for a call center or something, but it definitely makes sense for a creative, collaborative environment.