Credit Card Rewards

Got a credit card? Chances are it has some sort of reward system. Mine is a point a dollar sort of deal with the occasional multipoint opportunities from certain merchants, which tends to be standard. I was perusing my rewards yesterday and noticed some incongruities. In general 100 Reward Points equates to $1, for example a $100 Amazon Gift Card for 10,000 points. As I moved toward the higher end...