A comment to sellers
I find myself immersed in collecting a player who has MANY variations. I mean MANY! When searching through eBay and elsewhere for various cards, I often times find sellers who only show a pic of the front of the card. I assure you, there is specific information on the back of the card that needs to be known. All cards do not have normal numbers like 2, 345, 19. My stuff has numbers like AGR-DO, HRDO1, C95, and TSOPV. So, when you list, and don't include the back, there is no way to really know what version you are selling. It would enhance your sales and make decisions much easier for buyers to always include the back of the card.
My 2 cents.