Dark Slowbro #12 from Team Rocket is a 1st edition holo holo_rare card that currently sells for about $105 ungraded, with graded copies ranging from $96.82 at grade 7 to $4,107 at grade 10. A grade 10 copy sells for around $4,107, about 39× the $105 raw price, so high-grade copies are worth grading.