I realize that I'm adding nothing constructive to this thread; I don't care. Maybe some manager somewhere will see this and a hundred other anecdotal opinions and think twice about open offices.
I am the opposite of a prima donna. I just want to work. I want to make awesome stuff, keep my skills sharp and make the company some money. Preferably lots of it.
I'd be fine with an office that's literally 5x5', a desk, a door, a wifi connection, and some shared working areas for when it's time to collaborate. Because yes, collaboration is crucial (and fun) but if I have to hunt all over the damn building for a bit of quiet space (that might not even be avaiable) when it's time to bear down and do some solo coding then this is not going to work.
Hell, I'll even bring my own damn desk, chair, and laptop. Supplied my own laptop to my last two jobs. No big deal. I'm an engineer; I get paid decently. But I need a freaking place to focus for at least half of any given working week - and sometimes, for close to the entire week.
I don't need: famous guest speakers, catered food, fancy architecture, anything. I wouldn't even care if the office was a poorly-insulated garage that gets cold in the winter. I'll bring my own $20 space heater that will heat a 5x5' office just fine.
What I can't have, if you want me to get any work done, is multiple simultaneous conversations taking place five feet away from my head all day long.