I thought woot was a place where products sold at discount prices, the Casio can be found for cheaper price anywhere else. …
The same deal can be found at Austin Bazaar (http://www.austinbazaar.com/casio-privia-px-150-88-key-digital-piano-bundle-cas-px150bk-combo-pro-1.html).
Oops… apples to oranges comparison. The correct comparison is this one, at $529: http://www.austinbazaar.com/casio-privia-px-150-88-key-digital-piano-bundle-cas-px150bk-combo-pro-2.html
Apologies for the incorrect information.