If you're a frequent flier, maybe you covet a Delta Reserve American Express Card. It offers access to Delta's Crown Room, a first-class companion certificate and a generous 10,000-mile bonus when you sign up.
The American Express "black" card is legendary among upscale travelers. In order to qualify for the invitation-only card, you have to spend at least $250,000, plus pay $2,500 in annual fees. In exchange, you expect nothing but the best customer service. But that's not always what you get.