Giovanni's Nidoking #7 from Gym Challenge is a unlimited holo holo_rare card that currently sells for about $94.85 ungraded, with graded copies ranging from $77.00 at grade 7 to $203 at grade 10. A grade 10 copy sells for around $203, about 2.1× the $94.85 raw price, so high-grade copies are worth grading.