Sabrina's Haunter #55 from Gym Challenge is a 1st edition uncommon card that currently sells for about $19.99 ungraded, with graded copies ranging from $30.00 at grade 7 to $93.30 at grade 10. A grade 10 copy sells for around $93.30, about 4.7× the $19.99 raw price, so high-grade copies are worth grading.