I don't know if this would help you, but I'll relate what happened to me when I asked about upgrades and whether they discount any unsold rooms for the night. A few weeks ago I checked into a Contemporary wing room, standard view (least expensive room at Contemporary). While she was in the computer checking me in, I asked about what all rooms were available, and got no answer. When I thought she hadn't heard me, and said something like, "are there any other views available for tonight", she checked and offered me a couple of other rooms (I believe one was a garden view and also a tower room) at regular price using the code I was using at the time, the florida resident rate. I asked if they ever discounted rooms that aren't sold for the night, and she was very taken aback by that, and just said something like, "all i can offer are the rooms i told you about at the florida resident rate, would you like one of those", and when I declined, she was already motioning the next person to come over and pressure me to get out of the way and move on. I noticed she seemed very indifferent right from the start, didn't even smile to welcome me or anything when I first walked up, so it may depend on the cast member, but it sounds like they try to offer you something else at the same code if you ask for it, but otherwise they don't care if rooms sit empty instead of negotiating a price or upgrading. In the tens of times that I've stayed at WDW value, moderate, and deluxe resorts, I've never ever been upgraded, so I never even hope for something like that. I hope this helps you- like I said, it may be possible for you to upgrade at checkin using the same type of discount on a better room.