My Wii Fit U trial has expired and it says that I need to register a Fit Meter to continue using it. Something's confusing me, though: Wii Fit U retails with the meter at about £45-£50, or you can buy the meter on its own for £20. This makes it seem like there's some kind of catch, like the game being usable only by one person (the one registered on the meter), or having a limited set of features. Does anyone have any experience with this? If I buy a Fit Meter can everyone in the household continue playing Wii Fit U?