Toysrus.ca has a placeholder listing up for Nintendo Switch for $329.99 CAD. That's roughly $245 USD, so that would suggest a $249.99 price point. Obviously take it with a grain of salt, but still an oddly specific number to list it at if it is just a temporary price.
http://www.toysrus.ca/product/index.jsp?productId=115713676
http://www.toysrus.ca/product/index.jsp?productId=115713676