Went to Foxwoods and picked up a bunch of slot cards while my wife lost the family fortune. I came upon three different variations of the cards.

Question: Since it will cost 60¢ to mail a set of three what would be considered a reasonable price to ask for same? I only collect cards with my name on them.

Would love to trade a bunch for some California chips that I need for my collection and my son's memorial project but have not the foggiest idea of their worth. Like the antique dealer sign says 'I buy trash and sell treasures'. Got a bunch of trash. [smiley face if I knew how.]
Wishing all enough,
From the fire box of California
Dick Staeffler