Mewtwo-EX #62 from BREAKthrough is a holo holo_rare card that currently sells for about $5.59 ungraded, with graded copies ranging from $16.77 at grade 7 to $181 at grade 10. A grade 10 copy sells for around $181, about 32× the $5.59 raw price, so high-grade copies are worth grading.