Amazon has the Wii U Fit Meter marked down to $10 from $19.99.
A little product info:
~ Whether at home or on the go, the all-new Fit Meter tracks your progress, from calories burned to steps taken-even changes in elevation.
~ With the touch of a button, you can easily sync your Fit Meter data to compare your progress with friends or see how far you’ve gone in Walking Challenges, Altitude Challenges, and more
~Meter is designed for use with the Wii Fit U and Wii U System (game and system required, but not included)