If you want to buy a Wii Fit U meter, you can do so through various retailer websites like Amazon or GameStop. If you want to head into a store and pick one up, you're only going to have one choice early on. Seems like Toys R' Us has early dibs on the device, but it doesn't seem like things will stay that way forever. If you're aiming for launch day support and don't want to buy online, Toys R' Us is going to be the way to go.