Giovanni's Machamp #6 from Gym Challenge is a 1st edition holo holo_rare card that currently sells for about $90.72 ungraded, with graded copies ranging from $86.14 at grade 7 to $1,100 at grade 10. A grade 10 copy sells for around $1,100, about 12× the $90.72 raw price, so high-grade copies are worth grading.