I actually spoke to a customer service rep at TD Visa.. I was looking to change my card over to TD Emerald, at 6.15% interest. She asked me if I carried a balance on the card, and I said NO... i usually pay off my credit card balances each month.. she suggested that i don't get a TD Emerald, but that I get a rewards card instead....

This just proves my point... if you don't carry a balance, then cash back and/or rewards cards are a better use of your money.

You would use a cash back rewards card if you paid off your balance every month, and wanted some benefit.

Example: I used to spend approximately $40,000-70,000 per month on my credit cards for business. with the Platinum Plus Rewards MasterCard I would get $600-1050 in cash back every month. $7200 - $12,600 per year in cash back.

That makes alot of sense.

I never carried a balance and didn't pay interest.