I enjoy traveling to Berlin for vacation, as it's a totally different atmosphere around privacy. Default payment is cash, your entry and exit from train stations is not tracked (surveilled perhaps, but you do not tap-in/tap-out or god forbid tap your credit card every time you step on a train like SF or NYC), and it's against the law to publish photographs of someone without their consent.

Ask IBM what becomes of databases full of people's names associated with their movements.