It looks like the Balance Board is getting a new off-brand option to pick up. It does have a couple extra perks to go with it that the original Balance Board doesn't have. It was recently spotted on Amazon's UK site and says it will be released September 12th.
Normally the best part about an off-brand gaming accessory is it's a bit cheaper to pick up an extra one than if you were to get the official controller. However, that isn't as much the case with this Njoy board.
It does have the extra perk of a built in scale and outlines to show where your feet should go. However, it's marked at £64.99 or about $128, which isn't much less if at all than the official Balance Board just depending on where you purchase it from.