I would not say they are as scarce as free dining, I've never had an issue getting the discount. Even as our trip got closer last year availability with teh discount opened up in Coronado Springs and a few other moderate resorts as well. At the very minimum you will end up with a nicer room at what you are paying now more likely than not. Just be ready the day it goes live to get the call in or keep watching after as room changes always create more availability. I would think with Toy Story opening in the summer, there will be people waiting for that to go to WDW, so I'm hoping it works in all of our favor.