[I've bought one now!] If I bought a Wii U, what games would you recommend? (Wii and Wii U games)

[FinalFantasyXIII]

Wii Punch Out!! or Punch-Out! (Nintendo Selects)

I have no idea why this game is still around 50.00 when most Nintendo select titles are 20.00.

Ebay seems decent 34.99 sealed in box. http://www.ebay.com/itm/like/400665453890?lpid=82