Bid $40 for a 3* hotel for the Fourth of July (one night), looking only in the "downtown" area, and was rejected. Re-bid, adding the "Vet Stadium" zone (which has no 3* properties) and raising bid to $50--bingo! Got the Philadephia Doubletree Hotel, which is conveniently located on Broad and Locust, and is also a member of the Hilton family of hotels.