Does this make sense?
choose the 'bid now' option
city: buffalo Niagara Int'l Airport
put in the check in and check out date
click bid now
next screen:
choose buffalo amherst
choose 3 1/2 star hotel
enter what you wish to pay in the 'name your price' field and it will accept or deny
You are going to get the best price a week or two before your trip. I had a back up hotel booked that I could cancel without a pentalty 'just in case'.