Blacephalon-GX #219 from Lost Thunder is a reverse holo rare card that currently sells for about $32.00 ungraded, with graded copies ranging from $30.00 at grade 7 to $50.00 at grade 10. A grade 10 copy sells for around $50.00 vs $32.00 raw. That's a modest premium, so grading only pays off for near-perfect copies.