Posted By:
Adam J. BaxterThis list is based on my experience collecting these and what I've seen on Ebay and elsewhere-
Toughest: Red, Purple, Green and Light Green, Pink, Gray, Light/Neon Blue and I've heard of Orange, but have never seen one.
Easiest: Sepia, Dark Green, Blue, Dark Blue (Navy), B & W, Brown
The Standard Catalog does not currently list pricing tiers for the different colors. I imagine that it could be pretty tough try to catalog all the color variations since there are so many in-between shades. Also W517's with game captions on the borders like "Strike", etc. are difficult no matter what the color. I have a variety of different colors on my website if you want to check them out at:
http://imageevent.com/adambaxter/wcards;jsessionid=4en6m4zvm3.zebra_s
P.S.: I believe either Rhett or Rhys Yeakley have handled quite a few of these in the past and would probably have some better info for you.