Brock's Dugtrio #22 from Gym Challenge is a holo rare card that currently sells for about $7.36 ungraded, with graded copies ranging from $21.57 at grade 9 to $52.89 at grade 10. A grade 10 copy sells for around $52.89, about 7.2× the $7.36 raw price, so high-grade copies are worth grading.