Here is one for you. If you missed the Teen Titans Endless Winter Special which is one of the hot books of the week and is moving copies at multiple times cover price, here is a place to get them cheap off eBay. Seller is moving them at $6.99 with free shipping. He also offers discounts on multiple copies.
These are all listed as cover a. The more desirable cover.
Please note I am not affiliated with the seller and am not secretly colliding with them and linking before they go public.