I don't think you should change what you believe the pigment is worth. I see you are from Canada as well! I would hold it at market value, because (except for a few exceptions) it is not for sale, LE exclusive and whatnot. Retail is (IMO) only for those that are still available and either perm/easy to get.

And from the mixed reviews, I'm inferring its hit and miss, so may not be worth it. *shrug* If I were you i'd keep the pigment and just move forward with new lemmings!