Blaine's Ninetales #21 from Gym Challenge is a rare card that currently sells for about $15.00 ungraded, with graded copies ranging from $22.44 at grade 7 to $64.66 at grade 10. A grade 10 copy sells for around $64.66, about 4.3× the $15.00 raw price, so high-grade copies are worth grading.