StreetsAhead
Member
I don't think a bundled 2D Mario will eat into the sales of a new 3D Mario title. If anything, it will probably boost interest. And the games come pre-loaded on the hard drive, so how can it be too small to fit them all? From what I recall Mario was only like 4GB, and I can't imagine Wii Party or Wii Fit being much more. Beyond that you can just buy physical disk releases, so I don't see how you are "forced" to buy an external HDD.
Mario was ~2GB and Fit U is ~3, but no word on Wii Party U yet.