Seller "barkingspider1" on eBay has the 60 for 4575 and the 70 for 6550, free shipping to lower 48. 705 ratings and 100% positive. He (?) also has a 30-day defective return policy with seller paying return shipping. I'm keeping an eye on his listings as I amass my small fortune to buy one.
Google turns up this for the 70":
My Fun Electronics (no rating): 6293.75, free shipping
East coast TVs (5-star): 6309 + 39 shipping (limited shipping zones, though)
Exclusive TVs (5-star): 6355, free shipping to lower 48
Here's hoping they get into a price war...