Sandslash #29 from HeartGold & SoulSilver is a reverse holo rare card that currently sells for about $1.48 ungraded, with graded copies ranging from $20.24 at grade 9 to $81.20 at grade 10. A grade 10 copy sells for around $81.20, about 55× the $1.48 raw price, so high-grade copies are worth grading.