Should you quit your rewards credit card?

Some travelers are cutting up their cards now. But what are the alternatives?

Ronald Duben is ready to give up his credit card. He thinks there’s something better out there — and there almost certainly is.

Duben has been dutifully shelling out $120 a year for his co-branded airline rewards card, which promises he’ll get “free” flights if he spends enough money. It was a good deal at first. Once he collected about 60,000 points, he…