How onerous are credit card fees. Consider this example described by the NYT:

Robert Triozzi . . . found that over a period of several years, Ms. Owens had paid nearly $3,500 on an original balance of $1,900. But Discover was suing her for $5,564, mostly for late fees, compound interest, penalties and other charges. He called Discover’s actions “unconscionable” and threw the case out.