Giovanni's Gyarados #5 from Gym Challenge is a unlimited holo holo_rare card that currently sells for about $12.50 ungraded, with graded copies ranging from $13.84 at grade 7 to $105 at grade 10. A grade 10 copy sells for around $105, about 8.4× the $12.50 raw price, so high-grade copies are worth grading.