1. Why do you assume I hoard collectibles. You have no way of knowing what I have other than the stuff in my display bar, most of which I WON.
2. If someone really wants something they can make a thread and I can sell directly to them. No point selling to you, and you raising the price for master, who will then raise it again for his shop.
You can do what you want with your collectibles but I'm not selling mine so they can be resold for extortionate prices. Sorry.