Meganium #10 from Neo Genesis is a holo holo_rare card that currently sells for about $39.99 ungraded, with graded copies ranging from $43.27 at grade 7 to $70.00 at grade 10. A grade 10 copy sells for around $70.00 vs $39.99 raw. That's a modest premium, so grading only pays off for near-perfect copies.