I am looking to complement my miles/points earning with a cash back credit card. The goal is to offset travel cost for places that can't be redeem with miles/points (like a Bed and Breakfast lodging). I am trying to understand the redeeming part of these cards (not the earning). A card that keeps coming up during my research is the Capital One Venture credit card; the card offers an "erase" feature that redeem earned miles to credit travel expenditures. Isn't this just like a statement credit? How is Capital One Venture different from AMEX Blue Cash Everyday or Discover it Cash Back or Capital Quicksilver.? Do these not offer cash back and doesn't need to be travel related expense?