Meowth #10 from Wizards Black Star Promos is a promo card that currently sells for about $20.35 ungraded, with graded copies ranging from $47.27 at grade 7 to $7,500 at grade 10. A grade 10 copy sells for around $7,500, about 369× the $20.35 raw price, so high-grade copies are worth grading.