Cyndaquil #18 from BREAKthrough is a reverse holo common card that currently sells for about $1.23 ungraded, with graded copies ranging from $13.89 at grade 9 to $36.59 at grade 10. A grade 10 copy sells for around $36.59, about 30× the $1.23 raw price, so high-grade copies are worth grading.