City on Fire #363 from March of the Machine is a extended art foil rare card that currently sells for about $12.08 ungraded, with graded copies ranging from $3.25 at grade 9 to $4.00 at grade 9.5. A grade 9.5 copy sells for around $4.00 vs $12.08 raw. That's a modest premium, so grading only pays off for near-perfect copies.