Gyarados #4 from HeartGold & SoulSilver is a holo holo_rare card that currently sells for about $19.88 ungraded, with graded copies ranging from $31.00 at grade 7 to $1,259 at grade 10. A grade 10 copy sells for around $1,259, about 63× the $19.88 raw price, so high-grade copies are worth grading.