How far will $100,000 take you in the U.S.? Here's where it's worth the most — and least.

CBS News - For more and to sign up click here While six figures represents a respectable salary in most of the U.S., $100,000 won't get you very far in big cities like New York, where the cost of living is extremely high. The purchasing power — money's value in terms of how much it can buy you — of a $100,000 salary dwindles in places like Manhattan and San Francisco, relative to more affordable U.S. cities.…