Porygon-Z #105a from Burning Shadows is a holo holo_rare card that currently sells for about $2.29 ungraded, with graded copies ranging from $6.50 at grade 7 to $10.00 at grade 9.5. A grade 9.5 copy sells for around $10.00, about 4.4× the $2.29 raw price, so high-grade copies are worth grading.