Many moons ago, interviewing for my first full-time job out of school, I visited a certain large aerospace company in the Seattle area :-) One of the things that turned me off and helped lead to my turning down their offer was their bullpen-style office arrangement. (Arguably even worse than today's incarnations, it was just a bunch of desks in a large open area though we seem to be heading back in that direction.)

Mind you, it wasn't the only thing. Everything about the hiring process and people I spoke with screamed replaceable cog--they actually hired me solely based on my resume and only gave me a plant visit when I asked for one--but the bullpen office arrangement sure didn't help.