The real question is why haven't they been leaving sooner? With the power of telecommunications and the cost of doing business/living there.... it just doesn't make sense to me for a startup to try and grow there.
That's the part I'm always surprised by: the capital seems to continue preferring to pour a bunch of excess money into landlords' pockets rather than open little offices in other cities, fly to meetings a bit more often, or do more business by video conference.
