Originally Posted by
cutnana
Don't you think you will be better off with 5% interest on rewards checking account?
No, reward checking accounts are not for everyone. They may yield around 4% today but it's generally a hassle to maintain the required card purchases every month. Some people would rather just let their funds earn a return with no hassle.
At 1.2 miles per dollar annual yield she (and others) can easily beat the yield of a RC account (without even taking into account taxes).