Netgear N900 ( WNDR4500 ) - $119.99 plus tax at Costco B & M YMMV
Local Costco is selling this router for $119.99 that includes $20.00 instant rebate. Regular Costco price is $139.99.
This is the lowest price I have seen so far.
Amazon is selling at $149.99 and Newegg is selling at $158.99.