Gyarados #33 from Burning Shadows is a holo holo_rare card that currently sells for about $1.99 ungraded, with graded copies ranging from $7.50 at grade 7 to $99.99 at grade 10. A grade 10 copy sells for around $99.99, about 50× the $1.99 raw price, so high-grade copies are worth grading.