Crutchfield lists them in their outlet for $251.99 and scratch and dent for $237.99.
http://www.crutchfield.com/S-ry0J05m...&search=PRS500
No idea if they are in stock. But, why buy a 500 for $250 when you can get a 505 from Walmart for $268?
http://www.walmart.com/search/search...Reader&ic=48_0
BOb