Started bidding at $38 for ATL airport North, and South. Bid in $2-3 increments, adding rebidding zones until bid was taken at $58. If I recall, the bids went like this: 38, 40, 42, 44, 47,50, 52, 54, 56, 58 Atlanta fortunately has several zones in which to employ the rebidding method: Bidding Again before 24 hours (fyi - This is the only reason I started bidding so low. I would have started at mid 40's since mmost winning bids I saw for 4* were about $47 - 60. I probably ended up having 6 or so zones left that I could have used to increase my bid if needed)