Can I get some diaper pricing advice?

[momofthecloth]

I have some Wonderoos and some Little Lambs that I need to get ready to sell but I don't know what's reasonable to ask for them? All are used and in good condition. I have several "types" of Roos - which is why I'm confused as to which are more "sought-after" than others - prints? Old styles? Flap styles? Any advice from someone who has sold (or bought) these before would be greatly appreciated! Kind of a strange thing to ask, huh?