Some Casino's do give out Blank Cards to collectors. Others use the Blank Slot cards in Mail Out Promotions and ask you to bring them in to be "activated" and award you BONUS points on your New Card. Others are given out for special events, and the like. My Casino is looking at a New Machine that will allow them to Design and layout different printing format's on cards to be given out to Groups booking large venue's to make tracking these activities not only for that perticular dates but any return business that that person may bring. Players like the personnalization that this type of Slot Card provides by identifying them with a particular group and or Association.