If you had a cash back card you'd literally more money now than you did a year ago. That's a cold hard fact. If you took a vacation this year you'd probably have got a couple of free flights or free rooms. That's money you'd have right now that you don't have.
So yes, it cost you money not having a credit card. Unless you are irresponsible of course.
So yes, it cost you money not having a credit card. Unless you are irresponsible of course.