yep. They started around $100 the day of comicon (ebay of course), in a week dropped to $5-10 then became scarce. I guess now they are valuable again. My guess is a lot more will pop up closer to the movie and we'll see the same trend. High money for a short while then they go for next to nothing again. I bought a couple. I think I paid $20 shipped between the two.
Yeah I paid about $10 for mine as I missed out on the giveaway of these which was only the first night at Flynn's. On the second night all we got were shirts.