These limits are in place to keep people like me from gaming the system. Without these limits I would have an Amex Black card with $1M+ in annual transactions,

These limits are in place to keep people like me from gaming the system. Without these limits I would have an Amex Black card with $1M+ in annual transactions, and enough points to cover the $2500 amex fee, and the $3300 square fee. In college, I financed a spring break trip with credit card points by buying US Savings bonds on a credit card. The US treasury quickly wised up and realized selling bonds without charging a credit card fee was stupid. Even the US treasury got caught up in the first internet craze.