Any good or bad experiences with the Delta Gold Skymiles AMEX? I dislike the idea of getting a credit card just to save money in baggage fees, but man, we would save $100 in June, $100 in October, and $200 in December in baggage fees alone! Delta tends to be our go-to airline, so it doesn't make it that ridiculous to sign up for the card. Any feedback, good or bad would be helpful.