Vileplume-GX #250 from Cosmic Eclipse is a holo rare card that currently sells for about $40.00 ungraded, with graded copies ranging from $30.88 at grade 7 to $37.20 at grade 10. A grade 10 copy sells for around $37.20 vs $40.00 raw. That's a modest premium, so grading only pays off for near-perfect copies.