I understand I've provided some inaccurate information before, so I'm not going to make assumptions and say the value must be editted, but I think the purple and yellow items are rarer than the others, because they're harder to get. I've gotten the other colors multiple times, but I've only gotten the purple and yellow helmet twice and the back armor once. Plus, I've played Animal Jam for three years and I have never seen them on anyone's trade list. Ever.