I just price matched Skyward Sword in a larger order. I had used $5 of Circle rewards, and when they matched Amazon, the system treated the $5 as if it didn't exist, and they refunded me only $15 instead of the actual $20 price difference. The actual numbers are a little different, but this rounding makes it clearer. They also ignored the fact that I'd used the $5 on a larger order and applied the full $5 to the one item I was price matching. So if you price match, Target will simply effectively eliminate any Circle rewards used.