

I agree they also have benefits like extended warranties, IMO the way to go is to have two lines from the same bank, one with low interest and a high limit locked to only be used for emergency expenses, and another card with a low limit that has good rewards
One can be a financial cushion and the other can be habitually used to skim rewards with relatively lower risk of ending up in debt
I used one for paying monthly bills and utilities and didn’t redeem rewards for a couple of years, it was a few hundred dollars by the time I got to it which was really nice but also risky to hold because my bank could arbitrarily recalculate the value of the rewards points