A Rack is a particularly good hunting ground for the Kindred. A typical Rack features nightclubs or some other loud, crowded area active well into the night, providing not only a wealth of potential vessels but cover for the act of feeding.
Access to a Rack is an important bargaining chip in vampire politics, but must also be managed carefully: too many Kindred trying to hunt the same Rack is likely to draw unwanted attention from mortals.