Ultimately, it depends what you want - but the single, individual figure could get you roughly $20 on eBay, leaving you with the rest of the game. Plus, the Walmart one can be picked up in-store.
I'm not saying that yours isn't a deal - it is. And if you don't want to worry about reselling the figure and such, it's a better deal. Just linking to the Walmart one since it came up in the conversation.