Had to stop by my local Costco today and noticed they were selling Propel's Star Wars Quadcopter Battle Drones for only $59.99 which is the cheapest I have yet to see them. They are also listed at Costco.com for $59.99.
Originally these sold for $199.99 when first released, but within the past few months or so most retailers have been clearancing them out. Not sure if Propel is getting rid of these older models to make room for new models, or if they are finished with the license all together.
Anyways these are a blast to play with and for the price I thought it was worth mentioning.
FYI, if you dont have Costco Membership, Best Buy will Price match Warehouse Club prices on identical items.