Monster Hunter 3 Ultimate is less than $20 on amazon new. :D
The Wonderful 101 you can find at retail stores for $30 new. (Amazon it is $44)
As for used... blah. I don't normally liked used games. If you just look at Wii U games on amazon, you can see them all. Most are pretty cheap new. (Need for Speed Most Wanted U is another example. About $20 new)
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