i did a search and found some sandisk rebate mention but wanted to post this up to be sure everyone saw the full detail on the rebates.
i bought a new extreme 3 (new faster version) 16gb cf card from buydig.com today for $175 shipped with a $90 rebate from sandisk. $85 net (the rebate is a visa prepaid debit card) is an amazing price for this new very fast card. from the rebate form it looks like sandisk is offering substantial rebates on all of their fast cf and sd cards. in fact the rebates get bigger the more cards you buy, so if you buy 2 of the 16gb x3 cards the rebate is $200....bringing down the average cost to $75 a card. i was tempted to buy more than one and try to resell but that's not my thing.
here is a link to the rebate to see what cards and what rebates at what stores apply:
http://66.223.110.241/rebates/SandiskQ2VisaRebateExp062908.pdf

