I recently noticed or rather comfirmed that the special Jumbo Index Bicycle cards are made with a better long lasting finish that the usual standard face cards. If your were to open a box of these and standard face cards at the same time and fell them, you'll fell that the Jumbo Index cards are much sturdier (and take a while to break into for riffle shuffles). Also, they are slicker and have less adhesive, which isn't nessasarily a good thing, as even fans can fly out of your hands. As far as a life span goes, I'm not sure. I know that I went through a whole pack of standard face cards in a week. Mabe these will go longer.
