Ken Griffey Jr.'s rookie cards, like the 1989 Upper Deck Star Rookie, hold significant value for collectors, with some reaching over $2,000. The 1991 Topps Desert Shield cards, distributed to soldiers ...

Ken Griffey Jr. has not swung a bat professionally in over 15 years, and yet his card market is as strong as ever. From his 1989 Upper Deck RC PSA 10 doing well over $4,000 up from $2,500, to his 1995 ...