I bought one in Nashua, NH local warehouse this morning, the 40 units that they restocked this morning all sold out in just a few hours. So better call them before you drive to the local warehouse. The Costco Item number for this Generator is #598906. Other local warehouses may have sightly different model like Danvers, MA store has the 7000/9000 Watt Model which is also sold for the same price. Item number is #562296.
For comparison, Costco used to have this ETQ TG72B12 generator with power output of 8250 watt surge and 7250 watts of continuous power on sale $849.99 - $200.00 = $649.99 (includes shipping). That was listed as front page deal two month ago.
The 2 reviews listed on amazon for this generator are both 5 stars as here: http://www.amazon.com/Champion-Eq...B0056BYQP8
Price search on google: