Best Buy has some of the Cyber Monday Deals available online!
Best Buy has the Nintendo 3DS XL on sale for $179.99. This is one of the better prices I have seen on the 3DS XL. It is available in red and blue.
You can also use Ebates for 3.6% cashback, making it $174.59 after cash back. You can also get a $5.00 sign up bonus (if you are new) to make it $169.59.