Slot cards
I've become curious about slot machine player club cards. I see them on ebay and here and I wonder how one protects one's identity while trading or selling slot cards. I'm sure removing the name would have to lower the value and is it like everything else where condition is everything. I mean I have cards that are 30 yrs old or older and had been well used before I retired them.
Thanks to anyone who might have an answer or two.
Bob