How much is a magicyo k9 and dti bassboost worth?

Just wondering how much they would be worth?

This question would be better off in the appraisal thread
http://yoyoexpert.com/forums/index.php/topic,65572.0.html

That said I’d say about $10 each

Your bassboost between 30-50 depending on condition, just because they are so limited
k9 around $10 used" you can get them brand new $15