#22. 1979 O-Pee-Chee Wayne Gretzky #18 PSA 9
See the card here.- Category: Hockey- Market value: $150,379- 5-year ROI: 411%- 10-year ROI: 3,019%On the back of Wayne Gretzky’s 1979 rookie card, it says, “Wayne is considered the best prospect to turn professional since Guy Lafleur.” That may have…