Vaporeon #22 from Prismatic Evolutions is a reverse holo rare card that currently sells for about $0.77 ungraded, with graded copies ranging from $17.25 at grade 9 to $40.00 at grade 10. A grade 10 copy sells for around $40.00, about 52× the $0.77 raw price, so high-grade copies are worth grading.