The Rocket's Training Gym #104 from Gym Heroes is a 1st edition holo rare card that currently sells for about $12.50 ungraded, with graded copies ranging from $20.00 at grade 7 to $95.00 at grade 10. A grade 10 copy sells for around $95.00, about 7.6× the $12.50 raw price, so high-grade copies are worth grading.