Gyarados #123 from HeartGold & SoulSilver is a reverse holo holo_rare card that currently sells for about $69.99 ungraded, with graded copies ranging from $164 at grade 7 to $6,700 at grade 10. A grade 10 copy sells for around $6,700, about 96× the $69.99 raw price, so high-grade copies are worth grading.