Ok, I've never really understood the exact value of biped recipes and stuff, but I have like over 50 recipes for various things stored away in my vault. I also have some very rare biped items that I can't use.

Question: What do I do with them? (Namely, how do I turn them into a profit? :P) I know I can take 'em to a consigner, but I don't know what constitutes a fair price...