I ran a free dutch charity auction (charity of your choice on the honor system, no feed back) for the first 10 days of the promo on Ebay, got about 100 bids total in 2 auctions. What was funny was that even though I clearly stated in my auction that people could obtain unlimited miles for 19c/ mile there were plenty of people still bidding over $24+S&H for 1000 miles worth of the Kellogg's certs.

After $36 in Ebay fees and allot of nasty e-mails (from the illegal mile and certs sellers)I decided that I had done my bit to publicize the Inside Flyer Offer. Sent everyone who bid and sent questions the info on the promo and then cancelled the auctions as there were people making fake bids and threatening to leave bad feedback because they didn't like the fact that the bidding had stopped on their auctions once mine appeared.