Amazon offers the NutriBullet 5-Piece Deluxe Upgrade Kit for $10.52 with free shipping for Prime members (Target matches that price via discount after selecting in-store pickup.) That's the lowest price we could find by $9. It includes an extractor blade, tall and short cups, lip ring with handle, and standard lip ring.

Update: It's now sold out at Amazon; however, Target still offers it for $10.52 with in-store pickup.