You just missed the boat on the one80 darts that went from $59.99 to $15 shipped on Amazon yesterday. They sold out quickly at the discount price.

https://www.amazon.com/dp/B01N8ZYDBM/ref=cm_sw_r_cp_awdb_t1_U3mHDb8ZBYYTM

Last time they were on sale was around 8 months ago.