jayteeto,
Though I suspect they are price-fixed by Apple - you could see if Walmart have any offers on the I-Pad when you're there? We got PD Jnr a super saving on an Acer laptop from Walmart (the one behind Medieval Times on the 192) a few years ago and when I asked about any warranty issues they said not a problem - just take it to your local Asda or contact Acer UK!