Lugia-EX #108 from Plasma Storm is a holo holo_rare card that currently sells for about $22.49 ungraded, with graded copies ranging from $20.23 at grade 7 to $33.29 at grade 10. A grade 10 copy sells for around $33.29 vs $22.49 raw. That's a modest premium, so grading only pays off for near-perfect copies.