@pleonasm - It does depend on the kind of libertarian though. Not all of them are absolute about thinking the government should withdraw.
And in some cases they have a good point. I know that Detroit often gets pointed out as a place where libertarian values are shining, because there simply isn't the government presence to provide certain services.
I don't know if that is really a good example of collectivism vs. individualism though, because it seems to me that they've basically replaced government structure with their own structures of various kinds (like transport and security and so forth). So I don't think it's any different from the USA as a whole, just on a smaller level.