Most retailers who ordered Unity #1 at returnable levels will be getting one copy of Unity #1 3D Cover, as shown on Bleeding Cool the other day. Other copies will be made available for every 100 copies of Unity #1 ordered that each retailer doesn't return.
Which means that each retailers with spare copies on their hand will have to make a calculation.
This should make it easier. A hundred copies of Unity #1 will have cost a retailer around about $200. And a copy of Unity #1 3D, ahead of Friday's decision day, just sold on eBay for $338. That's a pure profit of $138 and you have a hundred copies of Unity to sell, discount or give away on Free Comic Book Day.
Of course that doesn't mean all copies will sell for $338. They could sell for less. Or more, there were two bids in the final seconds, one of $333 and another for $426.99 (as the winner confident to me).