Hmn, that is a downer. I suppose you sould try splitting your bid-- bidding for 4/20-4/22 and 4/23 seperately... you run the risk of staying in two different hotels that way, though. :/ Here's an idea, though: have you heard of Entertainment.com? If you sign up for an online subscription ($4/mo) you can get coupons for 50% the rack rate at many hotels-- in SLC the options include the Hilton, the Sheraton, Hotel Monaco, and the Crystal Inn. That might be worth a try. Good luck!
