WAY Cheaper on Amazon. $15 for 50 leaves. https://www.amazon.com/gp/product/B00M9GI2IK/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
I got 50 leaves for $15 on Amazon. The leaves breaking down is what releases the beneficial tannins, but you may want to remove them once they are just stalks. Rachel O'Leary talks about them here.