M Slowbro-EX #27 from Evolutions is a holo holo_rare card that currently sells for about $10.45 ungraded, with graded copies ranging from $15.00 at grade 7 to $90.00 at grade 10. A grade 10 copy sells for around $90.00, about 8.6× the $10.45 raw price, so high-grade copies are worth grading.