Mega Venusaur ex #155 from Mega Evolution is a holo ultra_rare card that currently sells for about $12.16 ungraded, with graded copies ranging from $14.00 at grade 7 to $68.90 at grade 10. A grade 10 copy sells for around $68.90, about 5.7× the $12.16 raw price, so high-grade copies are worth grading.