Cheap color copy printing-services offer you the ability to market yourself at low cost, without having to deal with bulky materials, and without having to pay expensive advertising fees. You can have a beautiful image on it and your contact information. A color copy will be used as often than a business card because it is a usable item, most business cards get put with other business cards and are not really that much of a standout marketing tool once in the patrons hands.
What type of graphic should you have on the printed rack card? Whatever you choose, make sure it reflects your desired goal of marketing your business or organization. If you are a bookkeeping business you may want to put a photo of someone doing accounting.