$10 rooms! The Frommers weigh in on today's biggest travel bargain

Last weekend at the New York Times Travel Show on the Hudson River in Manhattan, WalletPop cornered Pauline Frommer, the first female editor of a major guide book series, to ask her for the biggest travel bargain of the year.

It's Las Vegas, where rooms can be had for as little as $10 a night, followed closely by cruising, where cabins are going for $42. As Arthur Frommer confirmed during an address to the crowd on the same day, there's a very good reason why both of these vacation destinations are going so cheap, and surprisingly, is the same reason for both.