I just bought 5 sets from this guy for $50.99 shipped. He has 18 sets left and if you buy enough at a time he will give you a discount. You just have to message him.These are the same RCA's Ant was selling in the thread below.
Heres a link to his ebay item. Like I said just message him for a better price.
eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices