Sony 13.3" Vaio SVT13112FXS ultrabook $598+tax @ Walmart B&M YMMV

I was picking up the HP 13.3" folio ultrabook for $498 yesterday when I saw this Sony model sitting next to the HP. This was at the Montgomery, Texas Walmart. The Sony has much better specs and no rebates to deal with for $598:

Intel Core i5-3317U processor. 1.70GHz, 3MB Cache
4GB DDR3 SDRAM system memory (expandable to 8GB)
500GB hard drive and 32GB solid state drive
10/100/1000Base-T Ethernet, 802.11b/g/n Wireless LAN
13.3" HD LED-backlit display. Intel HD Graphics 4000

It's currently $767 at Amazon:
http://www.amazon.com/Sony-Series...roduct_top

They are probably getting harder to find at Walmart since I haven't seen this at the other 2-3 stores I have been at in the past week.
Walmart product page:
http://www.walmart.com/ip/Sony-13...ductDetail

They had the display available for another 25% off: $448.50 plus tax.
Of course the screen resolution is not great, there is no backlit keyboard, and weight is ~3.5 pounds.