Why you shouldn’t jump at Gold Delta’s increased sign-up bonus

American Express boosted its public offer on their Gold Delta SkyMiles card from 30K to 50K miles today, but it’s still not the best offer ever on this card. Importantly, they also boosted the referral bonus on the card from 5K to 10K miles, so beware of bloggers like me┬átrying to sell you on signing up for it. Continue reading