Nidoking δ #6 from Dragon Frontiers is a holo holo_rare card that currently sells for about $23.65 ungraded, with graded copies ranging from $30.19 at grade 7 to $200 at grade 10. A grade 10 copy sells for around $200, about 8.5× the $23.65 raw price, so high-grade copies are worth grading.