Being a player collector sure is fun. Take for instance this SPx Rookie Signatures card. I have no idea how many times I came across a similar card and passed it by because I thought I already had it. Well, this particular card was listed as a "box topper" in the eBay listing, which piqued my interest.
After a little research, I learned that it was indeed a parallel to the SP Rookie Signatures card I already owned.
Now, anyone looking at these two cards notices right away that they are different, but when I'm scanning eBay, I don't always do a card by card comparison to the ones I already have in my collection. So, mega thanks to the eBay seller who was smart enough to label this one correctly as a box topper.