Best Buy's bundle adds the $59.99 game to the regular $299.99 Wii U Basic console, which includes 8GB of internal storage. The regular $349.99 Deluxe console, which always includes Nintendo Land, also increases internal storage to 32GB. If 8GB of storage is a concern, you can always add an external hard drive to your Wii U.
You can hop over to Best Buy's website to take advantage of the deal while it lasts. It isn't forthcoming about how long that'll be, so it's probably in your best interest to act fast.