If you think that the first time I saw this the first time where my father worked in what must have been 1975 or so. That was also not a startup. It wasn't even an Internet company. Just boring metal industry.
To me cubicles is counter-productive bullshit to give people the idea they have their own office, while it is absolutely not the case that many employees swallow.
I even have experienced one place where they had semi-cubicles. I had them removed. The people moaned the first week, because people do not like change. I then asked if they wanted them back and the majority (80% or so) said no.
The advantages according to the people:
1) They have much more spaces or at least it felt as if their desks where larger.
2) The was way less noise as you could see if somebody was busy and not bother them
3) Less walking around to see if people where busy and walk back if they where not, so more productivity
4) More interaction with other people, resulting in a better understanding and less stress
Disadvantages according to the people
1) Less place to hang up personal things
2) People can see what you are doing (take that as you will)
3) I do not have my "office" anymore and feel less important
I another place it was asked if people wanted cubicles or not. They where allowed to make a selection themselves. Again the majority went with no cubicles. This was a new building with a new space. Again around 75-80% in favor.
The reason it was asked in the first place was because the 25% was demanding it and the rest was silent. This made it look as if the majority was for it. If the people would have wanted it, they would have bought the things and installed them.
At yet another company in another country I closely followed the movement to a new building. The same happened there. There people went from a building where all ofiices where rather smaller (4-8 people in an office) to one with much larger offices and the general consent was that they where happy to be more among the people they work together with.
So yes, in Europe the general idea is that people like to be working in an open plan. Perhaps because they are not ;there for 80 hours a week for 52 weeks for the most time.
Anecdotal: I have also received my own office once due to my function. I left the company partly because of that.
As far as I see, 25% of the people in Europe disagree. I can imagine that here on /. this percentage would be much, much, much higher.