I personally LOVE free plays. Im not sure what the attraction is that draws me, but I've always loved them. I dont have near the collection you do, but you can take a look here on my site:

http://www.terryscasinochips.com/ncv.html

Thanks for sharing these, thy're awesome. You should put a webpage together for these. OR...send me scans of them and I'll put them on my site.

If you have any traders, let me know.