Dark Slowbro #12 from Team Rocket is a 1st edition holo holo_rare card that currently sells for about $92.27 ungraded, with graded copies ranging from $86.14 at grade 7 to $2,833 at grade 10. A grade 10 copy sells for around $2,833, about 31× the $92.27 raw price, so high-grade copies are worth grading.