Comment by brewdad

The other benefit the Delta AmEx (and I presume other AmEx cards) gives are the various merchant discounts. In the past year I've gotten statement credits totaling about $600 by using the card to pay for various streaming services, shoes and clothes, certain restaurants and even my utility bill. The offers rotate every few months but I make sure to scan them when I login to view my statements and activate any of them I think I might use.

All of these things were items I was already using or would have purchased anyway and the discounts stack on top of any available merchant coupons too since they are credits coming straight from AmEx.