Sabrina's Gengar #14 from Gym Heroes is a unlimited holo holo_rare card that currently sells for about $30.25 ungraded, with graded copies ranging from $22.41 at grade 7 to $296 at grade 10. A grade 10 copy sells for around $296, about 9.8× the $30.25 raw price, so high-grade copies are worth grading.